EXPLANATION OF DIAGRAM.

1.--Superficial Coating of the Epidermis, severed at the Crease of

the Kernel.

2.--Section of Epidermis, Averages of the Weight of the Whole Grain, ½ %.

3.--Epicarp, do. do. do. 1 %.

4.--Endocarp, do. do. do. 1 ½ %.

5.--Testa or Episperm, do. do. do. 2 %.

6.--Embryo Membrane (with imaginary spaces in white on both sides

to make it distinct).

7.\ / Glutonous Cells \

8. > Endosperm < containing > do. do. 90 %.

9./ \ Farinaccous Matter /

Scientific American Supplement, No. 275, April 9, 1881 · 第 11 / 67 题