290 
POPULAR SCIENCE REVIEW. 
AMERICAN PUBLICATIONS. 
A MERICAN publications which we must regard as more or less national 
TA- in their character continue to reach us with astonishing voluminous- 
ness, leading us to admire more and more the liberality of the Governments 
of the United States. 
Foremost among them we must notice the Bulletin* of that wonderful 
institution the “ Geological and Geographical Survey of the Territories ” 
which, under the guidance of its chief, Dr. F. V. Hayden, has done so 
much good work in making known the structure and productions of those 
far-western regions which not many years ago formed almost a terra 
incognita. Of this most admirable repertory we have received the second 
and third numbers of Yol. HI., the first having unfortunately not reached 
us. Number 2, a stout part of 340 pages, is exclusively devoted to the 
description of the species of certain groups of Arthropoda, collected during 
the surveying expeditions into the Western Territories. It contains a long 
paper on u Western Diptera,” by Baron Osten Sacken ; a report by Dr. P. R. 
Uhler on the insects collected by him in 1875, with descriptions of Hemiptera 
collected by Dr. Packard ; and descriptions of spiders from Colorado, by M. 
T. Thorell. In the second of these papers Dr. Uhler introduces a sort of 
monographic treatment of two families of Hemiptera, the Cydnidae and the 
Saldidae, which will be of much use to students, but here and in other 
parts of his paper we regret to see what appears to be a reckless multiplica- 
tion of generic groups. It must be confessed, indeed, that Dr. Uhler has a 
sufficient number of companions to keep him in countenance in his iniqui- 
ties, but we cannot but feel that the true comprehension of the relations 
of organisms will be rather retarded than forwarded by the analytical pro- 
cess which is carried on by nearly all the zoologists of our day, the accepted 
notion being apparently that wherever a slight difference can be indicated a 
generic name must be imposed. M. Thorell’s paper relates solely to the true 
spiders of the Colorado district, of which he describes a good many new 
species. 
The contents of Number 3 are of a more miscellaneous nature. The 
ethnologist will find a comparative vocabulary of the dialects of the Indians 
of Utah, which is followed by a short note on the methods of making stone 
weapons, illustrated with a plate. Dr. A. C. Peale notices some peculiar 
eruptive ‘‘igneous and yet non-volcanic ” mountain masses in Colorado, on 
which be hangs certain considerations as to the geological history of the 
district. Professor Cope contributes a report on the Judith River formation 
and on vertebrate fossils obtained by him from it and from other deposits on 
and near the Missouri, in which he describes many reptilian remains ; whilst 
Dr. C. A. White describes the Uniones and other freshwater mollusca col- 
lected by Professor Cope, and also some from the tertiaries of Wyoming and 
Utah, gives a catalogue of the known invertebrate fossils from the fresh and 
brackish water deposits of Western North America, compares the North 
* Bulletin of the United States Geological and Geographical Survey of 
tta Territories, vol. iii. Nos. 2 and 3. 8vo. Washington. 1877. 
