Text-book of comparative anatomy, by Arnold Lang with preface to the English translation by Ernst Haeckel, tr. into English by Henry M. Bernard and Matilda Bernard.

pt. 1

Text-book of comparative anatomy, by Arnold Lang with preface to the English translation by Ernst Haeckel, tr. into English by Henry M. Bernard and Matilda Bernard.

pt. 2

Handbuch der Morphologie der wirbellosen Tiere / hrsg. von Arnold Lang.

4

Lehrbuch der vergleichenden Anatomie der wirbellosen Thiere / von Arnold Lang.

Lief.1

Lehrbuch der vergleichenden Anatomie der wirbellosen Thiere / von Arnold Lang.

Lief.2