1902. 
1903. 
1905. 
1906. 
INTRODUCTION 7 
Part X. “The Origin of the Auditory Organ: the Meaning of the 
0 
” 
” 
VIIIth Cranial Nerve,” vol. xxxvi., p. 164. 
XI. “The Origin of the Vertebrate Body-cavity and Excretory 
Organs: the Meaning of the Somites of the Trunk and 
of the Ductless Glands,” vol. xxxvii., p. 168. 
XII. “The Principles of Embryology,” vol. xxxix., p. 371. 
XIII. “The Origin of the Notochord and Alimentary Canal,” 
vol. xl., p. 305. 
