Bronn's Klassen and Ordnungen des Thierreichs, vol.
3 A succinct notice of the older works on ornithotomy is given by Professor Selenka in the introduction to that portion of Dr Bronn's Klassen and Ordnungen des Thierreichs relating to birds (pp. 5-9) published in 1869; and Professor Carus's Geschichte der Zoologie, published in 1872, may also be usefully consulted for further information on this and other heads.
Thierreichs, by permission of C.S.
Ordnungen des Thierreichs, I.
He was the first to attempt a comprehensive treatment of all invertebrates from the genetic point of view; but unfortunately his great work, entitled Die Stcimme des Thierreichs (Vienna and Prague, 1889), was uncompleted.
A classic but unfinished work describing the methods of invertebrate palaeontology is Die Stamme des Thierreichs (Vienna, 1889), by Melchior Neumayr.
(24) Simroth, " Mollusca," Bronn's Klassen and Ordnungen des Thierreichs, Bd.