ADVERTISEMENT. 
In the courfe of publication, we have been fortunate in 
procuring fpecimens of many uncommon Birds. Among 
the moft remarkable, are The Rofe-coloured Ouzel, Roller, 
Little Bittern, Waxen Chatterer, Black Woodpecker, and in 
particular that rare and almoft unknown fpecies, the Wood 
Chat.—The Red-necked Grebe, Dartford Warbler, Dufky Lark, 
Long-legged Plover, Egret and Cock of the Wood. We 
could enumerate many other fpecies highly important to 
the uninformed naturalift ; but, we refer our readers for the 
general detail, to the complete Sy{tematic Arrangement an- 
nexed to this Advertifement. 
In this Syftematic Arrangement we have followed the 
Syftema Nature of Linneus, though we totally diffent from 
the opinion of that celebrated naturalift in his primary 
—divifions of Ornithology. In every fyftem, the Birds which 
inhabit the land only, are feparated from fuch as frequent 
the water. This appears to be a natural method of forming 
two principal divifions of Ornithology ; it was adopted by 
Ray, and approved by Pennant and Latham. In the Linnzan 
fyftem, thofe which inhabit the water are feparated from 
the reft ; but the Land Birds are divided into two parts, and 
the Water Birds are placed between them. To avoid con- 
fufion we have adhered to this arrangement; but we have 
alfo placed an Index, in the manner of Pennant and Latham, 
at the conclufion of each volume. 
A 3 Having 
