THE VOLATILE PART OF £LANTS. 109 
AVERAGE QUANTITY OF ALBUMINOIDS IN VARIOUS VEGETABLE F sODUUTS 
per cent, 
MERIZe Od eT, SVECH. 75 215 stem clean esinylsteiesieels a] 
Beet tops A | hayoreis\ iets to araute-ernaraieieiajerenre 1.9 
Carrot tops Eee c.cxnsortratele lela aim eiminic ate 3.5 
Bendowaeriss) £9 oc ss csllscecisccmee. ce 3.1 
Red clover A eeu condopornogeacnia cand 3.7 
BUHL OSCLOVEK a. © "Ser Bo. s. 5 o.0c eraeta ciate wetntetaete 4.0 
SReIINPIS WITESIY...,c cisfoiche's sine m sjalsisisig vice cis site 1.0 
PANTO Gee ol ver oteveitave tc cicsuelga ain etetsoe eter 13 
PAPC R UN enw iaigich cela’ sla sisie cles Haeatacaeteas 2.0 
BiarancO WS yah ALY clo.) <.0\cisis/e\0le10,<isisieieipicialneip aie 1.4 
Straw of summer grain, air-dry............ 2.6 
Straw of winter as ee | wulsigneaeninds 3.0 
Pea straw “8. . paisyarsteteimin asters 1.3 
Bean straw SOs iz ciafecamere siaieis 10.2 
Meadow hay Selle! Wacciaisisidiccematele 8.5 
Red clover hay Bey ce reieicts enor 13.4 
White clover hay Se a AU stemindeom es 14.9 
Buckwheat kernel SC eSaticise Sena 7.8 
Barley &s Spay cra acct cferarasiates 10.0 
Maize se Meret wisielal a scsoe ales 100% 
Rye « Ligh, pon. ae eg 11.0 
Oat ce Ces aalaleteeclelecisi 12.0 
Wheat c COnm » stalste\ciseteresiate 13.2 
Pea cs pole Metis HOE nIC’ 22.4 
Bean ss Se whacreialcjsreleisiere 24.1 
Lupine s Soa eas taal tal anyote 34.5 
APPENDIX TO §4. 
CHLOROPHYLL : TANNIN : ALKALOIDS. 
Sefore dismissing the subject of the Proximate Elements of plants, we 
tust notice several other substances of subordinate agricultural inter- 
tet. Two of these, viz., Chlorophyll and Tannin, though not figuring in 
the analysis of agricultural plants, are nevertheless of almost universal 
occurrence in all forms of vegetation, though usually in very minute 
quantity. 
Chlorophyll, i. e. leaf-green, is the name applied to the substance 
which oecasions the green color in vegetation. It is found in all the sur- 
face of annual plants and of the annually renewed parts of perennial 
plants. It might readily be supposed that it constitutes a large portion 
of the leaves of vegetation, but the fact is quite otherwise. The green 
