Results for Orang utan in Problem 2

========+===========+==============+==============+==============+==============+==============+==============+==============+==============+==============+==============+===+===+===+===+========

| No. | S.1 | S.2 | S.3 | S.4 | S.5 | S.6 | S.7 | S.8 | S.9 | S.10 | | | | | Ratio

Date | of | | | | | | | | 1.2.3.4.5 | | | R | W | R | W | of

| trials | 7.8.9 | 1.2.3.4 | 2.3.4.5.6.7 | 1.2.3.4.5.6 | 4.5.6.7.8 | 1.2.3 | 2.3.4.5 | 6.7.8.9 | 1.2.3.4 | 3.4.5.6.7.8 | | | | | R to W

--------+-----------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+---+---+---+---+--------

| | | | | | | | | | | | | | | |

May | | {7.7.7.7 | | | | | | | | | | | | | |

17 | 1- 10 | {7.7.7.7 | 1.1.3 | 2.4.6 | 2.3.4.5 | 4.5.7 | 3.2 | 2.3.4 | {2.3.4.5 | 1.2.3 | 3.4.5.6.7 | 0 |10 | 0 |10 | 0:10.00

| | {7.7.8 | | | | | | | {6.7.8 | | | | | | |

| | | | | | | | | | | {4.5.6.8 | | | | |

18 | 11- 20 | 7.8 | 1.3 | 3.4.5.6 | 2.4.5 | 4.5.6.7 | 2 | 2.3.4 | {2.3.4.5 | 1.2.3 | {8.8.8.3 | 1 | 9 | 1 | 9 | 1: 9.00

| | | | | | | | | {6.7.8 | | {4.5.6.7 | | | | |

| | | | | | | | | | | | | | | |

| | | | {2.4.7.7.2 | | | | | | | {5.3.4.5 | | | | |

19 | 21- 30 | 7.8 | 1.3 | {5.7.7.2 | 5 | 4.6.8.4.7 | 1.2 | 2.3.4 | 5.8 | 3 | {6.8.4.5 | 2 | 8 | 2 | 8 | 1: 4.00

| | | | {3.2.4.6 | | | | | | | {3.5.6.7 | | | | |

| | | | | | | | | | | | | | | |

20 | 31- 40 | {7.9.7.7 | 3 | 4.5.6 | 4.5 | 5.6.7 | 2 | 4 | 5.6.7.8 | 3 | 5.6.7 | 4 | 6 | 4 | 6 | 1: 1.50

| | {9.7.8 | | | | | | | | | | | | | |

| | | | | | | | | | | | | | | |

21 | 41- 50 | 7.8 | 3 | 3.4.5.6 | 4.5 | 4.5.6.7 | 2 | 3.4 | 4.5.6.8 | 3 | 4.5.6.7 | 3 | 7 | 3 | 7 | 1: 2.33

June | | | | | | | | | | | | | | | |

3 | 51- 60 | 7.8 | 3 | 4.5.6 | 3.4.5 | 4.5.6.7 | 3.1.2 | 3.4 | {3.7.9.7 | 3 | 4.5.6.7 | 2 | 8 | 2 | 8 | 1: 4.00

| | | | | | | | | {9.7.6.8 | | | | | | |

| | | | | | | | | | | | | | | |

4 | 61- 70 | 7.8 | 3 | 4.5.6 | 4.5 | 4.5.6.7 | 3.3.1.2 | 4 | 4.5.6.7.8 | 3 | 4.5.6.7 | 3 | 7 | 3 | 7 | 1: 2.33

5 | 71- 80 | 7.9.7.8 | 3 | 3.4.5.6 | 3.6.3.4.5 | 4.7 | 3.1.2 | 4 | 3.4.5.6.7.8 | 3 | 4.5.6.7 | 3 | 7 | | |

" | 81- 90 | 7.8 | 3 | 3.4.5.6 | 3.4.5 | 4.5.6.7 | 2 | 3.4 | 3.4.5.6.7.8 | 2.3 | 4.5.6.7 | 2 | 8 | 5 |15 | 1: 3.00

| | | | | | | | | | | | | | | |

7 | 91- 100 | 7.8 | 3 | 4.5.6 | 4.5 | 4.5.6.7 | 1.2 | 3.4 | {3.4.5.6 | 2.3 | {3.4.5.6 | 1 | 9 | 1 | 9 | 1: 9.00

| | | | | | | | | {7.8 | | {8.5.6.7 | | | | |

| | | | | | | | | | | | | | | |

8 | 101- 110 | 7.8 | 3 | 4.5.6 | 4.5 | 4.5.6.7 | 2 | 3.4 | 4.5.6.7.8 | 3 | 4.5.6.7 | 3 | 7 | | |

" | 111- 120 | 7.8 | 3 | 4.5.6 | 3.4.5 | 5.6.7 | 2 | 5.5.2.3.4 | 4.5.6.7.8 | 4.4.1.2.3 | 4.5.6.7 | 2 | 8 | 5 |15 | 1: 3.00

| | | | | | | | | | | | | | | |

9 | 121- 130 | 7.8 | 2.3 | 4.5.6 | 4.5 | 4.5.6.7 | 2 | 3.4 | {2.3.4.5 | 1.2.3 | 3.4.5.6.7 | 1 | 9 | | |

| | | | | | | | | {6.7.8 | | | | | | |

| | | | | | | | | | | | | | | |

" | 131- 140 | 7.8 | 1.2.3 | 2.3.4.5.6 | 5 | 4.5.6.7 | 1.2 | 2.3.4 | 6.7.8 | 2.3 | 3.4.5.6.7 | 1 | 9 | 2 |18 | 1: 9.00

| | | | | | | | | | | | | | | |

10 | 141- 150 | 7.8 | 1.2.3 | 2.3.4.5.6 | 1.2.3.4.5 | 4.5.6.7 | 1.2 | 2.3.4 | {1.2.3.4 | 1.2.3 | 3.4.5.6.7 | 0 |10 | | |

| | | | | | | | | {5.6.7.8 | | | | | | |

| | | | | | | | | | | | | | | |

" | 151- 160 | 7.8 | 1.2.3 | 2.3.4.5.6 | 1.2.3.4.5 | 4.5.6.7 | 1.2 | 2.3.4 | {1.2.3.4 | 1.2.3 | 3.4.5.6.7 | 0 |10 | 0 |10 | 0:10.00

| | | | | | | | | {5.6.7.8 | | | | | | |

| | | | | | | | | | | | | | | |

11 | 161- 170 | 8 | {4.1.2.4.1 | 2.3.4.5.6 | 5 | 6.7 | {3.1.3.1 | 5.2.3.4 | 2.6.7.8 | 4.1.2.3 | 8.5.6.7 | 2 | 8 | | |

| | | {4.1.4.1.3 | | | | {3.1.2 | | | | | | | | |

| | | | | | | | | | | | | | | |

" | 171- 180 | 9.7.8 | 4.3 | 5.6 | 4.5 | 7 | 3.1.2 | 5.4 | 8 | 4.2.3 | 7 | 3 | 7 | 5 |15 | 1: 3.00

12 | 181- 190 | 7.9.7.9.8 | 1.2.3 | 3.4.5.6 | 6.4.5 | 5.6.7 | 2 | 5.3.4 | 7.8 | 4.1.2.3 | 4.5.6.7 | 1 | 9 | 1 | 9 | 1: 9.00

14 | 191- 200 | 9.8 | 3 | 7.6 | 6.5 | 8.7 | 3.2 | 5.4 | 6.7.8 | 4.2.3 | 7 | 2 | 8 | | |

" | 201- 210 | 8 | 2.3 | 7.6 | 6.5 | 8.7 | 3.1.2 | 5.4 | 8 | 4.3 | 7 | 3 | 7 | 5 |15 | 1: 3.00

| | | | | | | | | | | | | | | |

15 | 211- 220 | {7.9.7.9 | 4.2.3 | 6 | 5 | 8.7 | 3.2 | 5.4 | 9.8 | 4.3 | 7 | 3 | 7 | | |

| | {7.9.8 | | | | | | | | | | | | | |

| | | | | | | | | | | | | | | |

" | 221- 230 | 9.8 | 4.3 | 7.6 | 6.5 | 5.6.7 | 1.2 | 2.3.4 | 3.4.5.6.7.8 | 4.3 | 7 | 1 | 9 | 4 |16 | 1: 4.00

16 | 231- 240 | 7.9.8 | 3 | 7.6 | 6.5 | 8.7 | 2 | 5.4 | 5.6.7.8 | 4.1.4.3 | 8.7 | 2 | 8 | | |

" | 241- 250 | 9.8 | 4.3 | 7.6 | 6.5 | 7 | 3.2 | 5.4 | 6.7.8 | 4.3 | 6.7 | 1 | 9 | 3 |17 | 1: 5.67

| | | | | | | | | | | | | | | |

17 | 251- 260 | 9.8 | 4.3 | 7.6 | 6.5 | {6.5.4.6 | 3.2 | 5.4 | 6.5.6.7.8 | 3 | 5.6.7 | 1 | 9 | | |

| | | | | | {5.4.5.7 | | | | | | | | | |

| | | | | | | | | | | | | | | |

| | | | | | {6.6.6.5.6 | | | | | | | | | |

| | | | | | {5.5.5.6.6 | | | | | | | | | |

" | 261- 270 | {9.7.7.7 | 4.4.4.4.3 | 6 | 5 | {6.6.6.6.6 | {3.3.3.3 | 4 | {4.5.4.5.4 | 3 | {5.5.5.5 | 4 | 6 | 5 |15 | 1: 3.00

| | {7.7.7.8 | | | | {6.5.4.5 | {3.3.2 | | {5.6.7.8 | | {5.5.8.7 | | | | |

| | | | | | {6.5.5.4 | | | | | | | | | |

| | | | | | {4.5.6.7 | | | | | | | | | |

| | | | | | | | | | | | | | | |

18 | 271- 280 | {7.7.7.7 | 4.4.4.4.3 | 5.5.5.5.6 | 5 | {5.5.5.6 | {3.3.3. | 4 | {4.6.5.6 | 4.4.3 | 5.6.4.7 | 2 | 8 | 2 | 8 | 1: 4.00

| | {7.7.8 | | | | {5.5.6 | {3.3.2 | | {6.7.4.8 | | | | | | |

| | | | | | | | | | | | | | | |

| | {7.7.7.9 | | | | | | | | | | | | | |

19 | 281- 290 | {9.9.9.7 | {4.4.4 | {5.7.7 | 5 | 5.7 | {3.3.3.3 | 4 | 5.8 | {4.4.4.4 | {6.5.6.5 | 2 | 8 | | |

| | {7.7.8 | {4.4.3 | {7.4.6 | | | {3.3.2 | | | {4.4.3 | {5.5.7 | | | | |

| | | | | | | | | | | | | | | |

" | 291- 300 | 7.7.7.7.8 | 4.4.4.4.3 | 5.5.6 | 5 | {5.6.6.5.6 | 3.3.2 | {5.5.5.5 | 5.6.8 | 4.4.3 | 6.6.6.7 | 1 | 9 | 3 |17 | 1: 5.67

| | | | | | {6.6.6.7 | | {3.4 | | | | | | | |

| | | | | | | | | {5.6.6.6.7 | | | | | | |

21 | 301- 310 | 7.7.8 | 4.4.3 | 5.6 | 5 | {6.6.6.5 | {3.3.3.3 | 5.5.5.2.4 | {3.4.3.5.5 | {4.2.2.4 | 5.3.7 | 1 | 9 | | |

| | | | | | {5.6.5.7 | {3.2 | | {1.1.2.4.7 | {4.3 | | | | | |

| | | | | | | | | {2.3.2.2.8 | | | | | | |

| | | | | | | | | | | | | | | |

" | 311- 320 | {7.7.7.7 | 1.1.1.2.3 | {5.5.4.2 | 1.1.6.5 | 4.6.7 | 1.3.2 | {2.2.2.2 | {1.1.2.3 | {2.2.2.4 | {6.3.3.8 | 0 |10 | 1 |19 | 1:19.00

| | {7.7.8 | | {2.5.6 | | | | {2.2.3.4 | {6.6.6.8 | {2.3 | {4.8.7 | | | | |

| | | | | | | | | | | | | | | |

22 | 321- 330 | 7.8 | {2.4.2.1.4 | 6 | 5 | 6.6.8.7 | 3.2 | 5.5.3.3.4 | 3.3.7.7.8 | 4.4.4.2.3 | 6.7 | 2 | 8 | | |

| | | {4.4.4.3 | | | | | | | | | | | | |

" | 331- 340 | 7.8 | 3 | 6 | 5 | 6.7 | 3.2 | 5.4 | 6.7.8 | 3 | 5.6.7 | 4 | 6 | 6 |14 | 1: 2.33

| | | | | | | | | | | | | | | |

23 | 341- 350 | 7.8 | 4.2.4.3 | 6 | 5 | 6.7 | {3.3.3.1 | 5.5.4 | {7.5.4.3 | 4.4.4.3 | {6.6.3.6 | 2 | 8 | | |

| | | | | | | {3.3.3.2 | | {6.7.7.8 | | {8.6.8.7 | | | | |

| | | | | | | | | | | | | | | |

" | 351- 360 | 7.8 | 4.4.3 | 6 | 6.5 | 6.7 | 3.3.2 | 5.4 | {6.7.6.5 | 4.3 | 5.6.7 | 1 | 9 | 3 |17 | 1: 5.67

| | | | | | | | | {7.6.8 | | | | | | |

| | | | | | | | | | | | | | | |

24 | 361- 370 | 7.8 | 4.4.2.3 | 7.7.6 | 6.6.4.5 | 7 | {3.3.3.3 | 5.4 | 8 | 4.4.3 | 5.6.7 | 2 | 8 | | |

| | | | | | | {3.3.2 | | | | | | | | |

| | | | | | | | | | | | | | | |

" | 371- 380 | 8 | 4.3 | 7.6 | 5 | 7 | 3.2 | 5.4 | 7.6.8 | 4.3 | 7 | 4 | 6 | 6 |14 | 1: 2.33

| | | | | | | | | | | | | | | |

25 | 381- 390 | 8 | 4.4.3 | 7.7.7.6 | {6.6.6.6 | 8.6.7 | 3.1.2 | 5.3.5.4 | 8 | 3 | 7 | 4 | 6 | | |

| | | | | {6.4.6.5 | | | | | | | | | | |

| | | | | | | | | | | | | | | |

" | 391- 400 | 8 | 4.3 | 6 | 5 | 6.5.8.7 | 3.2 | 5.4 | 8 | 3 | 8.7 | 5 | 5 | 9 |11 | 1: 1.22

| | | | | | | | | | | | | | | |

26 | 401- 410 | 9.9.9.8 | 3 | {7.7.7.7.3 | {6.6.6.6 | 8.8.8.7 | 3.2 | {5.5.5.5 | 7.8 | {4.4.4.4 | 6.6.8.8.7 | 1 | 9 | | |

| | | | {3.7.7.6 | {6.6.5 | | | {5.5.4 | | {4.4.3 | | | | | |

| | | | | | | | | | | | | | | |

" | 411- 420 | 8 | 4.3 | 7.6 | 6.5 | 7 | 3.2 | 5.4 | 8 | 4.3 | 8.7 | 3 | 7 | 4 |16 | 1: 4.00

| | | | | | | | | | | | | | | |

28 | 421- 430 | 8 | {4.4.4.4 | 7.6 | {6.6.3.6 | 7 | {3.3.3.3 | 5.5.5.4 | 9.7.7.5.8 | 4.4.4.3 | 8.7 | 2 | 8 | | |

| | | {4.4.3 | | {6.6.6.5 | | {3.3.2 | | | | | | | | |

| | | | | | | | | | | | | | | |

" | 431- 440 | 8 | 4.3 | 6 | 6.5 | 7 | 3.2 | 5.4 | 7.8 | 4.3 | 7 | 4 | 6 | | |

| | | | | | | | | | | | | | | |

| | | | | | | | | {7.6.5.4 | | | | | | |

" | 441- 450 | 8 | 4.3 | 7.6 | 6.5 | 8.7 | 3.2 | 5.4 | {3.2.1.5 | 4.3 | 7 | 2 | 8 | 8 |22 | 1: 2.75

| | | | | | | | | {7.9.8 | | | | | | |

| | | | | | | | | | | | | | | |

29 | 451- 460 | 8 | 3 | 6 | 6.6.6.5 | 8.6.7 | {3.3.3.3 | 5.4 | 8 | 4.3 | 7 | 5 | 5 | | |

| | | | | | | {3.3.2 | | | | | | | | |

| | | | | | | | | | | | | | | |

" | 461- 470 | 8 | 4.3 | 6 | 5 | 8.7 | 3.2 | 3.2.3.4 | 7.8 | 4.3 | 7 | 4 | 6 | | |

" | 471- 480 | 8 | 4.4.3 | 7.7.6 | 6.6.5 | 7 | 2 | 5.5.5.5.5.4 | 7.8 | 4.4.3 | 7 | 4 | 6 |13 |17 | 1: 1.31

| | | | | | | | | | | | | | | |

30 | 481- 490 | 8 | {4.4.4.4 | 7.7.6 | 6.6.6.5 | 8.6.6.5.7 | {3.1.3.3 | 5.5.5.4 | 8 | 4.4.4.3 | 7 | 3 | 7 | | |

| | | {4.4.3 | | | | {3.3.3.2 | | | | | | | | |

| | | | | | | | | | | | | | | |

" | 491- 500 | 8 | 4.3 | 7.7.7.6 | 6.6.5 | 8.8.7 | 3.3.3.3.2 | 5.4 | {9.9.7.4 | 3 | 8.8.7 | 2 | 8 | 5 |15 | 1: 3.00

| | | | | | | | | {9.6.8 | | | | | | |

July | | | | | | | | | | | | | | | |

1 | 501- 510 | 9.7.9.8 | 4.3 | 6 | 6.5 | 8.6.7 | 3.3.2 | 5.4 | 8 | 4.3 | 7 | 3 | 7 | | |

| | | | | | | | | | | | | | | |

" | 511- 520 | {9.7.7.7 | 4.3 | 7.6 | 6.4.5 | 7 | 3.2 | 4 | 8 | 4.4.4.3 | 8.6.5.6.7 | 3 | 7 | 6 |14 | 1: 2.33

| | {7.9.8 | | | | | | | | | | | | | |

| | | | | | | | | | | | | | | |

2 | 521- 530 | 9.8 | 3 | 7.5.7.6 | 6.4.5 | 8.7 | 2 | 4 | 8 | 3 | 7 | 6 | 4 | | |

| | | | | | | | | | | | | | | |

" | 531- 540 | 9.9.7.8 | 3 | 7.4.6 | 5 | 6.6.7 | 3.3.2 | 3.4 | 7.3.5.4.8 | 4.3 | {8.8.6.5 | 2 | 8 | 8 |12 | 1: 1.50

| | | | | | | | | | | {4.5.7 | | | | |

| | | | | | | | | | | | | | | |

3 | 541- 550 | 8 | 4.3 | 6 | {6.6.6.6 | 6.8.7 | 3.3.3.2 | 5.5.4 | 9.6.9.6.8 | 4.3 | 7 | 3 | 7 | | |

| | | | | {6.6.5 | | | | | | | | | | |

| | | | | | | | | | | | | | | |

" | 551- 560 | 9.9.7.8 | 4.3 | 6 | 5 | 8.6.5.7 | {3.3.3.3 | 5.4 | {7.6.5.7 | 3 | 7 | 4 | 6 | 7 |13 | 1: 1.86

| | | | | | | {3.2 | | {9.7.9.8 | | | | | | |

| | | | | | | | | | | | | | | |

5 | 561- 570 | 8 | 4.3 | 7.6 | 6.5 | {8.8.8.8 | {3.3.3.3 | 5.5.5.5.4 | 8 | 4.4.4.3 | 8.8.8.8.7 | 2 | 8 | | |

| | | | | | {8.8.7 | {3.3.3.2 | | | | | | | | |

| | | | | | | | | | | | | | | |

" | 571- 580 | 9.8 | 4.4.4.3 | 6 | 6.5 | 8.8.7 | {3.3.3.3.3 | {5.5.5.5.5 | 7.6.8 | 4.4.3 | 7 | 2 | 8 | 4 |16 | 1: 4.00

| | | | | | | {3.3.3.2 | {5.5.5.4 | | | | | | | |

| | | | | | | | | | | | | | | |

6 | 581- 590 | 9.8 | 4.3 | 7.7.6 | 6.6.5 | 7 | 2 | 5.4 | 7.8 | 4.3 | 7 | 3 | 7 | | |

" | 591- 600 | 8 | 3 | 6 | 4.5 | 6.6.6.7 | 2 | 5.3.5.4 | 8 | 4.4.3 | 8.8.8.7 | 5 | 5 | 8 |12 | 1: 1.50

7 | 601- 610 | 8 | 1.3 | 6 | 5 | 6.5.7 | 2 | 5.4 | 5.6.6.6.7.8 | 4.3 | 7 | 5 | 5 | | |

| | | | | | | | | | | | | | | |

" | 611- 620 | {9.7.7.7.9 | 3 | 6 | 5 | 6.5.6.5.7 | 3.2 | 5.4 | 7.9.7.9.8 | {4.4.4.4 | 8.7 | 3 | 7 | 8 |12 | 1: 1.50

| | {7.7.7.8 | | | | | | | | {4.4.4.3 | | | | | |

| | | | | | | | | | | | | | | |

8 | 621- 630 | {9.9.9.7.9 | 4.3 | 6 | 6.6.6.5 | {8.8.8.8 | 3.2 | 5.4 | 7.6.8 | 3 | 7 | 3 | 7 | | |

| | {9.9.8 | | | | {5.6.5.7 | | | | | | | | | |

| | | | | | | | | {7.6.5.7 | | | | | | |

" | 631- 640 | 9.8 | 3 | 6 | 6.5 | 7 | 3.2 | 4 | {6.5.4.6 | 3 | 7 | 6 | 4 | | |

| | | | | | | | | {9.7.9.8 | | | | | | |

| | | | | | | | | | | | | | | |

" | 641- 650 | 8 | 3 | 6 | 5 | 7 | 2 | 4 | 7.9.6.7.9.8 | 3 | 8.6.8.7 | 8 | 2 |17 |13 | 1: 0.76

9 | 651- 660 | 8 | 3 | 6 | 5 | 7 | 2 | 4 | 7.6.7.6.8 | 3 | 8.6.8.8.4.7 | 8 | 2 | | |

" | 661- 670 | 9.9.8 | 3 | 7.6 | 5 | 7 | 3.2 | 5.4 | 7.6.7.6.8 | 4.3 | 5.6.8 | 3 | 7 |11 | 9 | 1: 0.82

| | | | | | | | | | | | | | | |

10 | 671- 680 | 9.8 | 3 | 5.4.5.6 | 5 | 6.4.8.6.7 | 3.2 | {3.5.3.2.3 | {7.6.5.6 | 3 | 5.4.3.7 | 3 | 7 | | |

| | | | | | | | {5.3.5.2.4 | {5.8 | | | | | | |

| | | | | | | | | | | | | | | |

" | 681- 690 | 8 | 4.3 | 6 | 5 | 7 | 2 | 5.4 | 8 | 3 | 6.8.7 | 7 | 3 |10 |10 | 1: 1.00

12 | 691- 700 | 7.8 | 3 | 5.6 | 5 | 7 | 3.2 | 3.4 | 7.7.7.7.8 | 4.2.2.3 | 8.7 | 3 | 7 | | |

| | | | | | | | | | | | | | | |

" | 701- 710 | 9.8 | 4.3 | 7.6 | 6.5 | 7 | 3.2 | 5.4 | {7.6.5.4.3 | 3 | 8.7 | 2 | 8 | | |

| | | | | | | | | {2.1.4.8 | | | | | | |

| | | | | | | | | | | | | | | |

" | 711- 720 | 8 | 4.3 | 6 | 6.5 | 7 | 3.2 | 5.4 | {7.6.5.4.3 | 3 | {6.5.4.3.6 | 4 | 6 | 9 |21 | 1: 2.33

| | | | | | | | | {2.5.9.8 | | {5.4.3.8.7 | | | | |

| | | | | | | | | | | | | | | |

13 | 721- 730 | 7.8 | 4.3 | 6 | 4.3.6.5 | 4.6.5.4.7 | 2 | 4 | {6.5.4.3 | 3 | {5.4.3.6 | 4 | 6 | 4 | 6 | 1: 1.50

| | | | | | | | | {2.1.8 | | {8.7 | | | | |

| | | | | | | | | | | | | | | |

| | | | | | | | | {4.7.5.4 | | | | | | |

14 | 731- 740 | 8 | 3 | 5.5.6 | 5 | {5.6.5.5 | 3.2 | 4 | {7.7.4.6 | 3 | 4.6.7 | 5 | 5 | | |

| | | | | | {8.8.7 | | | {5.6.8 | | | | | | |

| | | | | | | | | | | | | | | |

| | | | | | | | | {5.4.5.5.4 | | {4.4.4.5.5 | | | | |

" | 741- 750 | 8 | 3 | 5.6 | 5 | {6.5.6.6 | 2 | 4 | {5.6.4.4.4 | 3 | {5.4.8.8.4 | 6 | 4 |11 | 9 | 1: 0.82

| | | | | | {6.8.4.7 | | | {7.6.8 | | {5.5.6.4.7 | | | | |

| | | | | | | | | | | | | | | |

15 | 751- 760 | 7.7.9.7.8 | 3 | 6 | 5 | 6.6.7 | 2 | 4 | 6.6.8 | 3 | {6.6.6.8 | 6 | 4 | | |

| | | | | | | | | | | {5.6.7 | | | | |

| | | | | | | | | | | | | | | |

| | | | | | | | | | | {5.4.6.6.5 | | | | |

" | 761- 770 | 8 | 3 | 5.6 | 5 | 6.6.6.6.7 | 2 | 3.4 | 5.4.7.8 | 3 | {5.3.5.8.5 | 5 | 5 |11 | 9 | 1: 0.82

| | | | | | | | | | | {5.5.7 | | | | |

| | | | | | | | | {4.6.7.6.9 | | | | | | |

16 | 771- 780 | 7.7.7.8 | 3 | 6 | 4.5 | 5.7 | 2 | 3.4 | {7.7.5.5 | 3 | (5.6.8.5 | 4 | 6 | | |

| | | | | | | | | {6.6.6.8 | | {3.7 | | | | |

| | | | | | | | | | | | | | | |

| | | | | | | | | {6.6.7.2 | | | | | | |

" | 781- 790 | 7.8 | 3 | {4.5.4.3 | {4.6.4.4 | {4.4.6.8 | 2 | 3.4 | {3.4.4.4 | 3 | 6.7 | 3 | 7 | 7 |13 | 1: 1.86

| | | | {2.6 | {1.4.3.5 | {5.7 | | | {9.9.8 | | | | | | |

| | | | | | | | | | | | | | | |

17 | 791- 800 | 7.8 | 2.3 | 6 | {4.4.4.3.6 | 4.8.4.6.7 | 2 | 4 | {5.7.6.6.1 | 3 | 5.7 | 4 | 6 | | |

| | | | | {2.4.2.5 | | | | {7.4.4.8 | | | | | | |

| | | {2.4.4.4.2 | | | | | | | | | | | | |

" | 801- 810 | 7.8 | {4.2.4.1.4 | 5.7.6 | 5 | 5.7 | 2 | 3.5.5.4 | 6.8 | {2.4.4.2 | 6.8.7 | 2 | 8 | 6 |14 | 1: 2.33

| | | {2.4.3 | | | | | | | {4.2.4 3 | | | | | |

| | | | | | | | | | | | | | | |

19 | 811- 820 | 7.9.7.8 | 2.4.2.4.3 | 5.7.6 | 3.6.4.6.5 | 7 | 2 | 3.5.4 | 6.8 | 4.4.3 | 6.8.7 | 2 | 8 | | |

" | 821- 830 | 7.8 | 2.4.4.3 | 6 | 4.6.6.6.5 | 6.8.7 | 2 | 3.5.5.5.4 | 6.8 | 2.4.3 | 6.5.7 | 2 | 8 | | |

" | 831- 840 | 7.9.8 | 2.4.4.2.4.3 | 7.6 | 5 | 7 | 2 | 4 | 7.6.4.6.8 | 2.4.3 | 6.8.7 | 4 | 6 | 8 |22 | 1: 2.75

20 | 841- 850 | 7.8 | 3 | 5.7.6 | 4.6.5 | 6.8.7 | 2 | 3.5.4 | 3.5.8 | 2.4.3 | 6.8.6.8.7 | 2 | 8 | | |

" | 851- 860 | 8 | 2.4.3 | 6 | 3.6.5 | 5.7 | 2 | 2.5.4 | 4.7.8 | 2.4.3 | 4.4.6.7 | 3 | 7 | | |

" | 861- 870 | 7.8 | 2.4.3 | 6 | 5 | 7 | 2 | 2.4 | 6.8 | 2.4.3 | 4.7 | 4 | 6 | 9 |21 | 1: 2.33

21 | 871- 880 | 7.9.8 | 2.4.3 | 5.7.6 | {4.6.4.6 | 4.6.7 | 2 | 3.5.3.5.4 | 5.7.8 | 2.4.3 | 5.7 | 1 | 9 | | |

| | | | | {3.2.4.5 | | | | | | | | | | |

| | | | | | | | | | | | | | | |

" | 881- 890 | 7.8 | 2.4.2.3 | 3.5.7.6 | 3.4.6.4.6.5 | 4.6.5.6.7 | 2 | 4 | 6.8 | 3 | 4.6.5.7 | 3 | 7 | | |

| | | | | | | | | | | | | | | |

" | 891- 900 | 7.8 | 2.4.3 | 5.7.6 | 4.5 | 5.7 | 3.3.3.2 | 4 | {4.6.5.7.6 | 2.4.3 | 5.7 | 1 | 9 | 5 |25 | 1: 5.00

| | | | | | | | | {4.2.4.8 | | | | | | |

| | | | | | | | | | | | | | | |

22 | 901- 910 | 7.8 | 2.4.3 | 5.7.6 | 4.6.5 | 6.8.7 | 2 | 2.5.4 | 5.6.8 | 2.3 | 6.7 | 1 | 9 | | |

" | 911- 920 | 7.8 | 2.3 | 5.6 | 4.5 | 5.7 | 2 | 3.4 | 4.6.8 | 2.3 | 5.6.7 | 1 | 9 | 2 |18 | 1: 9.00

| | | | | | | | | | | | | | | |

23 | 921- 930 | 7.8 | 2.3 | {3.2.4.4 | 5 | 4.6.5.6.7 | 2 | 3.2.4 | 5.4.6.8 | 2.3 | {4.5.4.3.5 | 2 | 8 | | |

| | | | {5.6 | | | | | | | {6.5.6.7 | | | | |

| | | | | | | | | | | | | | | |

23 | 931- 940 | 7.9.7.8 | 3 | 5.4.6 | 5 | 5.7 | 2 | 4 | 6.7.8 | 3 | 6.8.7 | 5 | 5 | | |

" | 941- 950 | 7.8 | 3 | 5.6 | 4.6.5 | 7 | 2 | 3.5.4 | 5.6.8 | 2.3 | 6.7 | 3 | 7 |10 |20 | 1: 2.00

| | | | | | | | | | | | | | | |

24 | 951- 960 | 7.8 | 2.3 | {2.7.7.4 | 4.6.5 | 5.7 | 2 | 4 | 4.6.8 | 3 | 6.8.7 | 3 | 7 | | |

| | | | {5.7.4.6 | | | | | | | | | | | |

| | | | | | | | | | | | | | | |

" | 961- 970 | 7.9.7.8 | 3 | 6 | 5 | (6.8.6.8 | 2 | 5.5.3.4 | 7.8 | 3 | 7 | 6 | 4 | 9 |11 | 1: 1.22

| | | | | | {6.7 | | | | | | | | | |

| | | | | {4.2.6.4 | | | | | | | | | | |

26 | 971- 980 | 7.9.7.8 | 3 | 6 | {6.4.6.4 | 7 | 2 | 4 | 6.8 | 3 | 6.8.7 | 6 | 4 | | |

| | | | | {6.1.5 | | | | | | | | | | |

| | | | | | | | | | | | | | | |

" | 981- 990 | 7.9.7.8 | 3 | 6 | 5 | 7 | 2 | 4 | 7.6.8 | 3 | 6.8.7 | 7 | 3 | | |

| 991-1000 | 7.8 | 3 | 6 | 5 | 6.8.5.7 | 2 | 4 | 6.8 | 4.2.3 | 6.5.7 | 5 | 5 |18 |12 | 1: 0.67

--------+-----------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+---+---+---+---+--------

In |trials 1001| to 1100 the | right door |was indicated | by being |raised before | the choice | was made. | | | | | | | |

--------+-----------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+---+---+---+---+--------

30 | 1101-1110 | 8 | 4.3 | 7.6 | 6.6.5 | 7 | 2 | 5.4 | {7.7.7.7.7 | 3 | 6.6.7 | 4 | 6 | 4 | 6 | 1: 1.50

| | | | | | | | | {7.6.6.7.8 | | | | | | |

| | | | | | | | | | | | | | | |

| | | | | | | | | {7.7.6.7 | | | | | | |

31 | 1111-1120 | 7.7.8 | 3 | 7.6 | 5 | 6.7 | 3.3.2 | 4 | {7.6.6.7 | 4.4.4.3 | 7 | 4 | 6 | | |

| | | | | | | | | {6.6.8* | | | | | | |

| | | | | | | | | | | | | | | |

" | 1121-1130 | 8 | 4.3 | 6 | 6.5 | 8.7 | 3.2 | 5.4 | 7.8 | 3 | 7 | 4 | 6 | 8 |12 | 1: 1.50

August | | | | | | | | | | | | | | | |

2 | 1131-1140 | 8 | 4.4.3 | 6 | 5 | 7 | 3.3.3.2 | 4 | 7.8 | 4.3 | 7 | 6 | 4 | | |

" | 1141-1150 | 7.8 | 4.4.3 | 7.6 | 6.5 | 7 | 3.2 | 5.4 | 8 | 4.3 | 7 | 3 | 7 | 9 |11 | 1: 1.22

3 | 1151-1160 | 7.9.8 | 4.3 | 7.6 | 5 | 6.7 | 2 | 5.4 | 7.6.7.8 | 4.3 | 6.7 | 2 | 8 | | |

" | 1161-1170 | 8 | 4.3 | 6 | 5 | 7 | 2 | 5.4 | 7.8 | 4.3 | 7 | 6 | 4 | 8 |12 | 1: 1.50

4 | 1171-1180 | 8 | 4.3 | 6 | 6.5 | 6.7 | 3.2 | 5.4 | 7.8 | 4.3 | 6.5.6.7 | 2 | 8 | | |

" | 1181-1190 | 8 | 3 | 6 | 5 | 7 | 3.3.2 | 4 | 7.8 | 3 | 7 | 8 | 2 |10 |10 | 1: 1.00

5 | 1191-1200 | 7.8 | 4.4.3 | 6 | 5 | 6.7 | 3.3.3.2 | 4 | 6.7.8 | 3 | 7 | 5 | 5 | | |

| 1201-1210 | 8 | 4.3 | 6 | 6.5 | 7 | 3.2 | 5.4 | 7.8 | 3 | 7 | 5 | 5 | | |

" | 1211-1220 | 7.8 | 3 | 7.6.5 | 5 | 7 | 2 | 4 | 7.7.6.7.8 | 3 | 7 | 7 | 3 |17 |13 | 1: 0.76

| | | | | | | | | | | | | | | |

6 | 1221-1230 | 8 | 3 | 6 | 5 | {6.5.6.6 | 2 | 4 | {5.6.5.7 | 3 | 6.8.6.7 | 7 | 3 | | |

| | | | | | {5.6.5.7 | | | {9.7.8 | | | | | | |

| | | | | | | | | | | | | | | |

" | 1231-1240 | 7.8 | 3 | 6 | 4.5 | 7 | 2 | 4 | 6.7.8 | 3 | 6.7 | 6 | 4 |13 | 7 | 1: 0.54

7 | 1241-1250 | 7.8 | 3 | 6 | 5 | 7 | 2 | 4 | 8 | 3 | 8.7 | 8 | 2 | | |

" | 1251-1260 | 8 | 3 | 6 | 6.5 | 7 | 3.2 | 5.4 | 8 | 3 | 7 | 7 | 3 | | |

" | 1261-1270 | 8 | 3 | 6 | 5 | 7 | 3.2 | 5.3.4 | 8 | 3 | 7 | 8 | 2 |23 | 7 | 1: 0.30

9 | 1271-1280 | 8 | 3 | 6 | 5 | 7 | 2 | 5.4 | 9.7.8 | 3 | 7 | 8 | 2 | | |

" | 1281-1290 | 8 | 3 | 6 | 5 | 7 | 3.2 | 4 | 7.8 | 3 | 7 | 8 | 2 |16 | 4 | 1: 0.25

10 | 1291-1300 | 7.8 | 3 | 7.6 | 5 | 6.7 | 3.2 | 4 | 6.7.8 | 3 | 7 | 5 | 5 | | |

" | 1301-1310 | 7.8 | 4.3 | 5.6 | 4.5 | 6.7 | 2 | 4 | 6.8 | 3 | 6.8.7 | 3 | 7 | | |

" | 1311-1320 | 7.8 | 3 | 6 | 5 | 5.7 | 2 | 4 | 5.7.8 | 3 | 4.6.8.7 | 6 | 4 |14 |16 | 1: 1.14

11 | 1321-1330 | 7.8 | 3 | 6 | 5 | 6.7 | 3.2 | 4 | 4.6.7.8 | 2.3 | 5.7 | 4 | 6 | | |

" | 1331-1340 | 7.8 | 3 | 6 | 4.5 | 6.7 | 2 | 4 | 6.7.8 | 3 | 7 | 6 | 4 |10 |10 | 1: 1.00

12 | 1341-1350 | 9.8 | 3 | 6 | 5 | 6.7 | 2 | 4 | 6.7.8 | 3 | 6.7 | 6 | 4 | | |

" | 1351-1360 | 7.8 | 3 | 6 | 5 | 6.7 | 2 | 4 | 7.8 | 3 | 6.7 | 6 | 4 |12 | 8 | 1: 0.67

19 | 1361-1370 | 7.8 | 3 | 6 | 5 | 6.7 | 2 | 4 | 6.7.8 | 3 | 6.7 | 6 | 4 | | |

| 1371-1380 | 9.8 | 3 | 6 | 5 | 7 | 3.2 | 4 | 7.9.8 | 3 | 6.8.7 | 6 | 4 |12 | 8 | 1: 0.67

========+===========+==============+==============+==============+==============+==============+==============+==============+==============+==============+==============+===+===+===+===+========

[Footnote *: Aided by experimenter.]

After two hundred and fifty trials on problem 2 had been given Julius,

it seemed desirable to introduce a radical change in method in order to

stimulate him to maximal effort. It was therefore decided to force him

to make a round trip through the apparatus in connection with each

choice, and to let this forced labor serve, in the place of confinement,

as punishment for mistakes. This new method yielded peculiar and

characteristic results. They differ from those previously obtained

largely because of the orang utan's remarkably strong tendency to

reenter the box through which he had just passed. This occurred so

persistently, as may be seen in table 9 (June 17, second series, June

18, etc.), that a further modification of method was introduced in that

after the same wrong box had been entered five times in succession, the

experimenter on the next choice of the box confined the animal for a

stated interval, say sixty seconds, in it, and then allowed it to escape

by way of the exit door and choose repeatedly until it finally located

the right box. Were it not for this particular feature of the method,

the number of choices recorded after June 17 would unquestionably be

very much greater than the table indicates.

The new method proved a severe test of the orang utan's patience and

perseverance, for he had to work much harder than formerly for his

reward, and often became much fatigued before completing the regular

series of ten trials. Early in the use of this method, he developed the

habit of rolling around from exit door to starting point by a series of

somersaults. When especially discouraged he would often bump his head

against the floor so hard that I could hear the dull thud. As has been

noted, I found it desirable to vary the procedure repeatedly. It proved

especially interesting to give one series per day with the round trip as

punishment and another series with confinement as punishment.

Day after day, as the experiment progressed, slight or great

fluctuations of the ratios of right to wrong choices appeared, but

without consistent improvement. There was, to be sure, as the last

column of table 9 shows, a radical improvement during the first six

hundred and fifty trials, for the number of right choices per series

increased from 0 to 8. But, as the observations were continued from day

to day, it became more and more evident that the animal was merely

passing from tendency to tendency--method to method--mixing tendencies,

and occasionally developing new ones, without approach to the solution

of the problem. This fact would have led me to discontinue the work much

earlier than I actually did had it not been for the peculiarity of the

results obtained with problem 1. It seemed not improbable that at any

time Julius might succeed in perfectly solving this problem over night

precisely as he had solved the first problem.

A curiously interesting bit of behavior appeared for the first time on

June 29. Julius had gone to the first box at the right end of the group,

and instead of entering, he had wheeled around toward his right, and

turning a complete circle, faced the right box, which he promptly

entered. Subsequently, the tendency developed and the method was used

with increasing frequency. On June 30, it appeared in the first series,

four times, in the second series, six times; on July 1, in the first

series, three times, and in the second series, four times; on July 2, in

the first series, five times, and in the second series, nine times. It

was indeed only by accident that the animal failed to fulfill the

technical requirement for perfect solution of the problem in this

series. Yet, had he done so, his subsequent trials would doubtless have

revealed the lack of any other idea than that of turning completely

around before entering a box.

This odd bit of behavior proved peculiarly interesting and significant

in that the tendency to turn became dissociated from the position (in

front of the first box at the right end of the group) in connection with

which it originally developed. After a few days, Julius would enter the

reaction-chamber and instead of proceeding directly to the right end of

the group, would stop suddenly wherever he happened to be, turn toward

his right in a complete circle, and hasten into the box nearest to him

which, as often as not, proved to be the wrong one. Thus the idea of

turning completely about, which had it continued its association with

the idea of facing the first box at the right, would have yielded

success, instead became useless because of its dissociation. That the

orang utan is capable of using free ideas seems clear enough in the

light of this behavior. That he proved incapable of getting the idea of

second from the right end is as clearly shown by the detailed results of

table 9,--the fruits of weeks of experimenting.

Certain other interesting tricks developed in Julius's behavior. Thus,

on July 5, there appeared the tendency to move as though about to enter

the right box (feint), then to stop suddenly and promptly enter another

box, which was, of course, a wrong one. The reason for the development

of this tendency could not be discovered, but in connection with it,

there appeared another tendency which possibly can be explained. Julius

took to backing into the chosen box so that he could face the

experimenter. He would then, after a period of hesitation, come out and

promptly enter one of the other boxes. This tendency was apparently due

to the fact that during one or two series the experimenter growled at

the orang utan every time he made a mistake. The growl startled him and

caused him to look around. He evidently felt the need of keeping his

eyes on the experimenter,--Hence the backing into the open box. The

tendency disappeared shortly after the experimenter gave up the use of

the growl as a method of punishing the animal for what were suspected to

be careless choices.

Curiously enough, it was not until July 10 that direct choice of the

right box was made at all frequently. Previously, selection of it had

been made almost invariably after approach to other boxes. But in the

second series for July 10 there was an extraordinary improvement in

method. This developed in the presence of two visitors, and it is

therefore all the more surprising. The choices were made not only

directly, but with decision and evident certainty that was quite at

variance with the previous behavior of the animal.

All the while through variation of methods, I was seeking to discover

the best means of holding the orang utan to his maximum effort and care

in attempting to select the right box. One day it would seem as though

forcing him to make round trips with rewards only for correct first

choices proved most satisfactory, and the next it might seem equally

clear that punishment by confinement for thirty seconds or sixty

seconds, with reward for correct choice in every trial, yielded better

results. In the end I had to admit that no best method had been

demonstrated and that I had failed to develop conditions which served to

compel the animal's attention to the problem and to lead him to work

without discouragement. There were, it is true, days on which it seemed

practically certain that the problem would be solved, but as it turned

out, Julius never succeeded in choosing correctly--throughout a series

of ten trials.

As a last resort, in order to make perfectly sure that the orang utan

was doing his best, I decided to introduce corporal punishment in a mild

form. For this purpose, I placed my assistant in charge of the apparatus

and the series of trials, and stationed myself in one corner of the

reaction-chamber with a whip in my hand. Whenever Julius entered a wrong

box, I approached him with the whip and struck at him, being careful not

to injure him and rarely striking him at all, for the threat was more

effective than a blow. He was extremely afraid of the whip and would

begin to whine and attempt to get out of the way as soon as he saw it.

This method was introduced on August 10, but no improvement resulted,

and in the end there was no reason to consider it more satisfactory than

the other procedures. I am now wholly convinced that Julius did his best

to choose correctly in the majority of the numerous series which were

given him in connection with problem 2.

From trials 1001 to 1100, a radical departure from the previous methods

was introduced in that the right box was indicated to the animal by the

slight and momentary raising of its exit door. Of course no records of

the choices for this group of one hundred trials appear in table 9, for

the simple reason that the animal inevitably and immediately entered the

right box. It was thought that this method might serve to break up the

previously developed tendencies toward inadequate forms of response and

so encourage the animal that he would later solve the problem when given

opportunity to select the right box without aid from the experimenter.

But as a matter of fact, while the ratio of right to wrong first choices

was 1 to .67 in the series preceding this change of method, it was 1 to

1.50 in the first series following its use. There is no satisfactory

evidence that Julius profited by this experience, though as a matter of

fact he did succeed in making his best daily record, eight right to two

wrong choices, on August 4, after 1190 trials.

The curve of learning for this problem has been plotted and is presented

in figure 19. It is of course incomplete and it is offered only to

indicate the extreme irregularity in performance.

_Problem 1a. First at the Right End_

It was decided on August 19 that the further continuation of the work of

Julius on problem 2 was not worth while. He had become much discouraged,

and although willing to work for food, gave no indications whatever of

improvement and seemed to have exhausted his methods. It seemed wise

instead of giving up work with him in the multiple-choice method to

return to a form of problem 1. We may designate it as problem 1a. The

right box is definable as the first at the right end of the series

instead of the first at the left end as in the original problem 1. It

was thought possible that Julius might quickly solve this problem by a

process similar to that used for problem 1.

Work was begun on problem 1a, August 20, and for six successive days two

series of trials per day were given, the settings for which as well as

the resulting choices are given in table 10. Most notable in these

results is the large number of cases in which Julius chose first the

second box from the right end of the series, or in other words that box

which had been the right one in problem 2. Contrary to expectation, he

showed no inclination to abandon this tendency to choose the second from

the right end, and the ratio of right to wrong choices changed in the

direction opposite from expectation, beginning with 1 to 4 and ending on

the sixth day with 0 to 20.

It was obviously useless to continue the experiment further since Julius

had given up his attempts to locate the right box in the first choice

and was apparently satisfied to discover it by a process of trial and

error. He had, it would seem, satisfied himself that the problem was

insoluble. These results obtained in problem 1a constitute a most

interesting comment on the effects of problem 2 on the orang utan.

Behavior similar to that which he developed well might have been

obtained from a child of three to four years placed in a like situation

and forced to strive, day after day, to solve a problem beyond its

ideational capacity.

In many respects the most interesting and to the experimenter the most

surprising result of this long series of observations with Julius was

the lack of consistent improvement. It seemed almost incredible that he

should continue, day after day, to make incorrect choices in a

particular setting while choosing correctly in some other setting which

from the standpoint of the experimenter was not more difficult.

The Mental Life of Monkeys and Apes: A Study of Ideational Behavior · 第 48 / 64 题