171 
1921.] Recently published Ornithological Works. 
Four of* the plates contain photographic views of some of 
the localities where collections w r ere formed, and on two 
others, illustrated by a graphic method, the variation of 
the wing-lengths of several forms. 
We must congratulate Dr. Stresemann on having accom¬ 
plished a fine piece of work, which will be essential for all 
future students of the fauna of south-eastern Europe. 
Taverner’s recent papers on Canadian ornithology . 
[Birds of Eastern Canada. By P. A. Taverner. Canada, Geological 
Survey Memoir 104 (no. 3, Biological series), pp. iv + 297; 49 col. pis., 
68 text-figs. Ottawa (Govt. Printer), 1919. 8vo.] 
[The Birds of the Bed Deer Biver, Alberta. By P. A. Taverner. 
Auk, xxxvi. 1919, pp. 1-21, 248-265; 4 pis.] 
[Bird-houses and their Occupants. By P. A. Taverner. Ottawa 
Naturalist, xxxii. 1919, pp. 119-126.] 
[The Birds of Shoal Lake, Manitoba. Id., ibid, xxxii. pp. 137-144, 
157-164 ; xxxiii. pp. 12-20.] 
The first and most important of Mr. Taverner's publications 
is his handbook of the birds of eastern Canada. It contains 
a large amount of concise information packed into a com¬ 
paratively small compass, and deals with 766 species of 
Canadian birds, all those likely to be met with in Canada 
from the woodlands of the eastern half of Manitoba to the 
Atlantic coast. 
The species are emphasized at the expense of the subspecies, 
which are merely mentioned in a paragraph. Under each 
species is given the recognized English name, other vernacular 
names in use, the Frencli-Canadian name, and the scientific 
name from the A. 0. U. Check-list. Then follow short 
paragraphs on distinctive characters, field-marks, nesting, 
distribution, subspecies, and economic status. The coloured 
illustrations, two on each plate, are necessarily somewhat 
small, but are on the whole very successful, and will be 
found most useful for identification. They are prepared 
by Mr. Frank Hennessey, of Ottawa, and reflect great credit 
on the artist. 
In the first part of the work is a good key, based on.that 
in Mr. Chapman's ‘ Handbook of the Birds of Eastern North 
