NOTICES OF NEW BOOKS. 271 
ascertain whether they, or any of them, undergo a similar 
seasonal change of bill. The result of his enquiries has lately 
been published in the ‘ Bulletin’ of the above-mentioned Society, 
and has been issued in*separate form, with six coloured plates 
and a map showing the distribution of the different forms of 
Fratercula arctica, of which Dr. Bureau recognises three. His 
remarks are too long to admit of translation in these pages, 
‘hence we must content ourselves with giving a brief summary of 
the results arrived at. 
For the Puffin and its allies Dr. Bureau establishes a family, 
Mormonide, distinct from Alcide, and, as above stated, recognises 
three forms of the Common Puffin, which he designates armori- 
cana, islandica, and glacialis. His map shows the geographical 
distribution of these three forms, so far as at present ascertained. 
Armoricana is the form which predominates in the British 
Islands, the Feroe Isles, the western coast of Gothland, and the 
northern shores of France. Jslandica occurs along the coast 
between the North Cape and the Varanger Fjord, Iceland, South 
Greenland, Newfoundland, and the southern coast of Labrador; 
while glacialis is found throughout Spitzbergen, the cliffs of 
Prudhoe Land abutting on Smith’s Sound, and the northern 
coast of Labrador. 
With some slight variations, which are described, Dr. Bureau 
finds that the following species shed portions of the bill in the 
same way as the Common Puffin does, namely, Fratercula corni- 
culata, Lunda cirrhata, Ceratorhina monocerata, Ombria (vel 
Phaleris) psittacula, and Simorhynchus cristatellus. One species 
at present remains undetermined as to the moult, namely, Simo- 
rhynchus camtschaticus, while Simorhynchus microceros, which 
Dr. Bureau identifies with S. pusillus of Pallas, has been found 
to moult the tubercle only. 
We may here remark that, since the publication of Dr. 
Bureau’s first memoir on the subject, Mr. Robert Ridgway, of 
Washington, has been engaged in independent research on this 
very question, and in the current number of the ‘ Bulletin of the 
Nuttall Ornithological Club’ (p. 126) he has briefly stated the 
result of his investigations. His conclusion is that “a similar 
change from the breeding to the winter condition exists in the 
North Pacific species of Fratercula (F’. corniculata), in Lunda 
cirrhata, Ceratorhina monocerata, the species of Simorhynchus 
