CATALOGUE OF AUTHORS. 
In explaining the abbreviations employed to indicate the numerous 
writers necessarily referred to in this work, we have embraced the 
opportunity of giving the reader a general idea of their profession, 
the period of their birth and decease, and of the character of their 
writings. 
Axitp.—AsitpcaarpT (Peter-Christian), a Danish naturalist; 
Professor at Copenhagen, died in 1808. 
One of the continuers of the Zoologia Danica of Miiller, and author of various Me- 
moirs published among those of the Society of Natural History, and of The Royal 
Society of Sciences of Copenhagen, as well as those of the Society of Naturalists 
of Berlin. 
AcAD. pDEs Sc. 
I thus quote the “ Memoirs de l’Académie des Sciences” of Paris, of which one 
quarto volume was annually published from 1700 to 1790. 
I have also occasionally quoted the “‘ Memoirs des Savants Etrangers,” eleven 
volumes, from 1750 to 1786. 
I have also frequently quoted the “ Memoirs of the Academy of Berlin” from 
1819, and the new ones of the Academia Nature Curiosorum of Bonn, from Vol. 
IX, at which epoch they assumed their new form. 
For those of the Academy of Petersburg see Peterob. or Petrop. 
Acosta or rather Menpez pa Costa (Emmanuel), a Portuguese 
naturalist, resident in London. 
“¢ Historia Naturalis Testaceorum Britanniz,” 1 vol. 4to. London, 1778. 
Apanson (Michael), born at Aix in 1727, and died in Paris 1806, 
Member of the Académie des Sciences, and one of the first natu- 
ralists who attempted the classification of Shells according to their 
animals. . 
“* Histoire Naturelle des Coquillages du Sénégal,” 1775, 1 vol. 4to. 
Acassis, a German naturalist. 
Editor of the “ Fishes of Spix,” and author of Memoirs in the Isis. 
