IV CONTENTS 



11. 11. DoNALD.soN. .\ preliminary (Ictcriiiiiiatioii of tlie part played by myelin in reduc- 

 ing the water content of the mammalian nervous system (albino fat). One chart.. 443 

 \V. J. Ckozikh. The taste of acids. Two figures 453 



No. 5 OCTOBER 



William A. Hilton. The nervous system of pycnogonids. Twenty-one figures 463 



J. B. Johnston. Evidence of a motor pallium in the fore-brain of reptiles. One figure. 475 

 J. B. Johnston. The development of the dorsal ventricular ridge in turtles. Twenty- 

 seven figures 481 



Perciv.\l Bailey. The morphology and morphogenesis of the choroid plexuses with 

 especial reference to the development of the lateral telencephalic plexus in Chry- 



semys marginata. Twenty-seven figures 507 



Sumner L. Koch. The structure of the third, fourth, fifth, sixth, ninth, eleventh and 



twelfth cranial nerves. Five figures 541 



Caroline Burling Thompson. The brain and the frontal gland of the castes of the 



'white ant,' Leucotermes flavipes, Kollar. Twenty-six figures 553 



