PLATE IV. 



Figs. I, 2 and 3. Stages in the germination of the seedlings of Alisma plant ago . 



eight times natural size. 

 Fig. 4. The same x 4. 

 Fig. 5. ,, natural size. 



Fig. 6. ,, ,, 



(Figs. 1-6 after Lord Avebury, "Seedlings." C^/". = cotyledon. ) 



