8 
Pure and Mixed Linseed- Cakes. 
when examined with a J-inch lens, as will be seen in the 
accompanying representations of the epidermis or cuticle. 
Figs. 4-6. — Exteriors of Bape and Mustard. 
Fig. L— Common Rape. Fig. r}— Indian Rape. Fig. 6.— Red Mustard, 
i X 195 Diameters. x 195 Diamoters. x 195 Diameters. 
Fig. 7.— Section of Red . Fig. 8.— Section of White 
Mustard. Mustard. 
A. Outer skin or layer. | T>. Fourth layer. 
B. .S'cond layer. I E. Fifth layer. 
C. Third Uiyer. | F. Oil-cells. 
In a sample of wild mustard-seed, or charlock, taken frona 
linseed, 1 found ; — 
Nitrogen 3 " 99 
Equal to albumiuous compounds 24 '93 
Mineral matter (ash) 5 '13 
5. Yellow Dodder {Camelina sativa). This is a bright yellow 
seed, of about the size of cress-seed, and resembling it in its 
general structure. Dodder or camelina-seed occurs almost 
always, and, speaking comparatively, in large proportions in 
