IV CONTENTS 



No. 4. AUGUST 



C. W. Prentiss. The development of the hypoglossal ganglia of pig embryos. 



Eight figures 265 



Albert Kuntz. The development of the sympathetic nervous system in 



birds. Ten figures . 283 



F. L. Landacre. The origin of the cranial ganglia in Ameiurus. Eighty- • 

 eight figures %$Q 



No. 5. OCTOBER 



C. Judson Herrick. The morphology of the forebrain in Amphibia and Rep- 



tilia. Eighty-four figures 414 



No. 6. DECEMBER 



Karl T. Waugh. The r61e of vision in the mental life of the mouse. From 



Bel6it College. Ten figures 549 



Lawrence W. Cole. Reactions of frogs to chlorides of ammonium, potassium, 

 sodium and lithium 601 



Sergius Morgulis. The movements of the earthworm. Two figures 615 



Editorial Announcement 625 



r 



' C. W. Prentiss. The development of the hypoglossal ganglia of pig embryos. 



eight figures 265 



Albert Kintz. The development of the sympathetic system in birds. Ten 



figures 283 



\, 



F. L. Landacre. The origin of the cranial ganglia in Ameiurus. Eighty- 

 eight figures 309 



