Smithsonian Report, 1 91 2.- Leerendre. 



Plate 1, 



Fig. 3.— Entire Cerebro-Spinal Axis of the Toad, 



ISOLATCD AND KePT ALIVE FOR 31 HoURS 35 MIN- 

 UTES. I Baglioni, 1 909. > 



^/1/y 



IL ko 



Fig. 4.— Amoeboid Movements of a White Blood 

 Corpuscle of a Frog After being Kept Alive 

 for 10 Months. Uolly, 1910.) 



