CONTENTS 
1912 
No. 1. FEBRUARY 
F. L. LanpacrE. The epibranchial placodes of Lepidosteus osseus and their 
relation to the cerebral ganglia. Fifty-eight figures................... 1 
Henry H. Donaupson. A comparison of the European Norway and albino 
rats (Mus norvegicus and Mus norvegicus albinus) with those of North 
America with respect to the weight of the central nervous system and 
foucranial capAaciiys. SHIVE MOUTCS. sz oga02 thas <1 eke wie 5 Sool Soe bis sss ane prea 71 
No. 2. APRIL 
Henry O. Feiss. Experimental studies of paralyses in dogs after mechani- 
cal lesions in their spinal cords with a note on ‘fusion’ attempted in 
the cauda equinas or the sciatic nerves. Twenty-seven figures........ 99 
EvizABETH Hopkins Dunn. The influence of age, sex, weight and relation- 
ship upon the number of medullated nerve fibers and on the size of the 
largest fibers in the ventral root of the second cervical nerve of the 
aT OM Tal Geek  BRoll OUR CS ee earn caso anes ae eaet a sce tesa Ao cata or att Sia 2 aw 131 
S. WatTerR Ranson. The structure of the spinal ganglia and of the spinal 
NEEVER. - Mifteen MRUTes:o).ni.s aca ee ora ees cries os Circe Serna male Si 159 
Nowe. JUNE 
RauteH Epwarp SHELDON. The olfactory tracts and centers in teleosts. 
IDOE =tWOrPLabes.<.s 0. cis 2 sc ere uti aa tered icra, So Stee ASO lou! Seis cise « Se 177 
No. 4. AUGUST 
J. B. Jounston. The telencephalon in cyclostomes. Forty-one figures.... 341 
ili 
