LIFE, irs PHYSICAL BASIS AND SLMPLE.sT EXPUESSIOX .31 



Fig. 17.— Amoeba eating a microscopic one-celled plant. (Afi«T Vcrworn.) 



Fig. 18. — Amceho pnli/podin in six succes.sive stajtes of Cssion. TJu« tl;it k m iii(c^iimrKiii<Hl 

 spot in tiie interior is the micleiis. ( Vfu-r I". I!. S<'h»»Il»«".) 



