TY  - ART
TI  - Principles of zoölogy : touching the structure, development, distribution, and natural arrangement of the races of animals, living and extinct, with numerous illustrations : part I, Comparative physiology, for the use of schools and colleges — Illustration, Page 74
PY  - 1851
UR  - https://www.biodiversitylibrary.org/page/1380708
ID  - page-1380708
ER  -