59 seconds.
04 seconds.
10.5 seconds.
17 seconds.
77 - 59 = 18.
18 ÷ 3 = 6.0 = time of one interval.
_Résumé._
No. 1 6.0 seconds. 6.31 × 5 = 31.55
2 6.0 seconds. + 1.00
3 6.7 seconds. ----
4 6.3 seconds.
5 6.5 seconds. 32.55
6 6.7 seconds. 32.55 ÷ 6.31 = 5.159
7 6.0 seconds. With fork free 5.163
---- -----
Mean = 6.31 seconds Effect of scrape = - .044
_Specimen._
Circumstances as in first case, except that both forks were on their
resonators.