10 
Pure and Mixed Linseed- Cakes. 
17. Cleavers or goosegrass-seeds (^Galium aparine). 
18. Darnel-seed, Drunken Darnel (Lolium temulentum). This 
is a large grass-seed resembling somewhat 
Fig. 10. Darnel-seed. appearance rye. It is reputed to pos- 
Lolmm temulentum. ^^^^ intoxicating properties. In a sample 
^^,g-;r^^S>!5j,^^ of darnel-seed I found : — 
/twISIl?^ Nitrogen 1-80' 
Equal to albuminous compouuds 11 "81 
b^'^^^i^^'^V ^^^^^^^ species of lotus and similar 
papilionaceous seeds. 
N^^A'^l^x^^ 20. Spurry (Sperffula arvensis). A dull 
m^^^sS^^^/'^ black, small, round seed, containing much 
ID ~~^tbCliJ«-'^ starch. Spurry, which is abundant in 
some kinds of linseed, gives a peculiar 
X140.— Diameter. flavour to Hnseed-cakc, reminding one of 
the smell of a cage in which canary birds are kept. From an 
analysis of spurry-seed I obtained the following results : — 
Moisture 12-53 
Oil 10-19 
*Nitrogenous compounds 5-62 
Starch and digestible fibre 59 ' 13 
Woody fibre (cellulose) 8-86 
Mineral matter (ash) 3-67 
100-00 
*Containing nitrogen -90 
Spurry-seed, it will be seen, is not, strictly speaking, an oily 
seed ; it is poor in albuminous compounds, but contains a large 
proportion of starch. 
21. Knot-grass (^Polygonum, avicidare). A brown leather}' 
_. , , _ seed, minutely striate and punctate. Is 
i*ig. 11. — Knot-qraf.s • ^• ^ ^^ i 
" T -n 1 ■ very common m dirty Imseed. 
seed. Jrolynomm an- av» t>i i i • i i / r« ? n 
" culare rJlack bindweed i^Pobjgonum Con- 
volvulus). A triangular seed, resembling 
^^^^^^^ buckwheat, but sm.aller. 
' ' " ''" i<v Buckv/heat [Polygonum Fago- 
L ' i4 pyrum). A farinaceous seed, which oc- 
^.j.../ curs in some kinds of linseed in consi- 
( ' derable quantities. 
24. Various kinds of clover-seed, 
25. A number of grass-seeds. 
, . The seeds here mentioned are readil}' 
recognised in dirty linseed by any one 
X 140.— Diameter. u u 7 • • l t • 1 
who has had some experience in botanical 
examinations, A professional botanist, no doubt, would find a 
