XVIII, MAMMALIA 
ARRANGED BY 
R. LYDEKKER. 
CONTENTS 
I-AGE 
I. Titles . . . . . . . . . . . . . . . . 5 
II. Subject Index : — 
Comprehensive and General = 6003 : — 
History, Biography 
Treatises, Text- books 
.. 43 
# # 
.. 44 
Institutions, Collections 
.. 44 
Economics 
.. 44 
Structure = 6007 : — 
General and Comparative 
.. 44 
Histology . 
. . 44 
Tegument.. .. .. .. 
.. 44 
Nervous system and sense-organs 
.. 45 
Myology * 
.. 46 
Osteology, dentition 
.. 46 
Alimentary system 
. . 47 
Circulatory and respiratory system 
.. 47 
Placenta . . 
.. 48 
Excretory organs. Special glands 
.. 48 
Organs of reproduction . . 
.. 48 
Special (or doubtful) 
. . 49 
Physiology = 6011 : — 
General and miscellaneous 
, , 
. . 49 
Hermaphroditism 
. . 
.. 49 
Functions and Chemistry 
. . 
49 
Environmental effects 
. . 
.. 50 
-9720/) 
d 17 
