S-i 



VARIOUS FOOD-PLANTS 



Fig. M». — Toniatf). Flijwer, cut "\-('rtir;iIl\', rnlarged. Fruit, .^ulc ^■U'w. 

 8:inie, cut across. Seed, cut vcrticalb' to .show cur^'ed germ, in .seed- 

 food. (Redrawn from Nees.} 



rid of as well as it can or allows to accumulate where they 

 will do the plant no harm. The coloring matters and flavor- 

 ing su})stances of the vegetables already studied are examples 

 of such l)y-]iroduct.s. 



All of tlic clu'inical changes taking place in tlie living parts of an 

 organism are togetlier called metabolism,' the constructive changes 

 being distinguished as (inaholism,- and the destructive ones as cataho- 



' Met-ab'o-lism < Gr. incia, beyond; Ixillrin, throw. 

 - Aii-ab'o-lisin < Gr. ana, upward. 



