X 
ADVERTISEMENT. 
Tlie first of his volumes will be devoted to a part 
of the Birds of Western Africa, a portion of 
Geographic Ornithology which has never yet been 
elucidated, and of which there does not at present 
exist any published account whatever, notwithstand- 
ing its interest and beauty. This volume, like all our 
others, will contain upwards of Thirty Plates, en- 
graved and coloured from his own drawings, made 
from specimens, together with a general view of the 
ornithological features of that division of Africa, in 
comparison to those of other regions ; and whether 
we consider Mr Swainson’s merits as an accom- 
plished naturalist or artist, we look forward to a rich 
treat when the volume makes its appearance. 
The Natural History of Parrots, by Mr Selby of 
Twizell, author of the British Ornithology, will now 
in a very short time be published. The whole draw- 
ings for its illustrations are from the pencil of Mr 
Lear, and from their variety of form, beautiful plu- 
mage, and curious manners, the volume cannot fail 
of proving very acceptable. 
The volume upon that hitherto obscure branch of 
Zoology, the Natural History of the Cetacea or 
Whales, and the Marine Carnivora, or Seals, &c.[is al- 
so much advanced, and Mr Stewart has contrived 
to infuse very gi'eat interest into his drawings of the 
Whales, Narwhals, Seals, &c., so that whether w« 
