558 
Analyses of Boohs . 
[September, 
Report of an Exploration of Parts of Wyoming , Idaho, and 
Montana, in August and September, 1882 ; made by Lieut. - 
Gen. P. H. Sheridan. With the Itinerary of Col. J. F. 
Gregory; and a Geological and Botanical Report, by 
Surgeon W. H. Forwood. Washington : Government 
Printing Office. 
The first fadt we notice in the topographical account of the 
region traversed is that the trout of Spring Creek and Wind 
River have dark spots on their sides, whilst the trout in the 
streams east of the Mississippi have red spots. It is pleasing 
to learn that Gen. Sheridan prohibited the killing of more ante- 
lopes than the Expedition could consume. 
It is remarked that the water of the Shostone Lake is “ as 
blue as indigo.” Whether this colour, as in some small lakes in 
Transylvania, is due to a salt of copper, is not mentioned. 
Gen. Sheridan notices that the National Park is in some 
danger from encroachments, and that the game is being rapidly 
killed off. He proposes to keep out the skin-hunters by means 
of his troops. Col. Gregory also notices adts of “ vandalism,” 
from which the magnificent geysers of the park have suffered no 
little. 
The speed at which the Expedition moved was inimical to 
geological and botanical research. Nevertheless Dr. Forwood 
made a considerable number of interesting observations. He 
finds, by comparison with the reports of former visitors, that the 
great geysers are not decreasing perceptibly in strength. 
It is curious to notice the paucity of ferns encountered, the 
only species recorded being Woodsia Oregana. 
Second Report of the Department of Entomology of the Cornell 
University Experiment Station. By J. H. Comstock. 
Ithaca : Andrus and Church. 
This Report deals exclusively with what may be called the eco- 
nomical phase of Entomology, — the identification of the insedts 
harmful to field- and garden-crops, the descriptions of their 
habits, and suggestions for their extirpation, or at least diminu- 
tion. This study has been forced upon the agricultural interest 
in the United States in consequence of the exuberance of insedl- 
life under their more brilliant suns ; partly also, perhaps, from 
the large size of the fields, and the substitution of rail- and wire- 
fences for live hedges, thus depriving the insedlivorous birds of 
shelter. Hence in America the entomologist is no longer sneered 
