Bibliographical Notices. 407 
terminations to our scientific names we should follow Grimm’s law 
in the substitution of Latin letters or diphthongs for their Greek 
equivalents, as, indeed, is universally done in our English version 
of the New Testament. 
The mention of Alurus, or 4lurus, brings to notice the circum- 
stance that Dr. Trouessart places this genus—as represented by the 
Himalayan Panda—among the Bears, instead of with the Raccoons. 
And although its molar teeth do present a certain very curious 
similarity to those of the Parti-coloured Bear (4@/uropus), yet the 
proposed innovation is, to say the least, open to a considerable 
amount of doubt. While on the subject of Bears, it may be noticed 
that the author (following Gray) places the Grizzly Bear in a sub- 
genus apart from the Brown Bear ; and yet there are naturalists who 
consider that both are but different local modifications of ove and 
the same species! Another innovation which may be open to 
criticism is the placing of a number of extinct Lemuroids in the 
family Tarsiide, although recent observations as to the generalized 
characters of the living Varsiws may perhaps render it well- 
founded. 
One more criticism and we have done. This relates to the 
so-called Scomber scomber principle, which, to our great personal 
regret—for it is too ridiculous and absurd—seems slowly but surely 
making its way among naturalists. Here, again, the author is not 
uniform in his treatment, for whereas we have Gorilla gorilla and 
Lutra lutra, we find Meles taxus in place of Meles meles. 
It is in no carping or disparaging spirit that the above remarks 
are penned: the object of the reviewer being to urge how important 
it is for naturalists to come to some general agreement on the points 
mentioned. Betore this can be done, every one must agree to submit 
his own individual views to the opinion of the majority and to adopt 
a spirit of give and take. 
Dr. Trouessart’s work will be of the highest value to all students 
of Mammals, and indeed absolutely indispensable to every worker 
in the subject. The care and precision with which it has been 
compiled, the fullness of the references, the extreme freedom from 
typographical errors, and the excellent style in which it is printed, 
render it alike creditable to the industry of the author and to the 
establishment of his publishers. RoE: 
The Geology of the English Lake District, with Notes on the Minerals. 
By J. Postrernwaitr, F.G.S. Small 8vo. 78 pages, with Lllus- 
trations. Bakewell, Keswick, 1897. 
Tur Author, having lived in the Lake District and carefully 
studied the geology of Cumberland and Westmoreland for many 
years, has from time to time published several descriptive papers on 
the local rocks, their structure, minerals, and fossils. He now 
applies his geological and mineralogical experience to the production 
of this little book, in which he systematizes what has been observed 
