432 Scientific Intelligence. 
water for sanitary purposes, and the determination of the various 
ingredients which may be present. It contains much useful infor- 
mation in regard to the sanitary effect of different kinds of water, 
the comparative danger arising from the various possible im 
ties, and concludes with the Report of the Rivers Pollution Cae 
missioners of Great Britain. 
Il GroLtogy AND Natura History. 
1. On the Geological action of the Humus acids; by ALExis 
A. Jutien, of New York. 100 pp. 8vo. From the Proceedings 
of the American Association, vol. xxviii, eaneyoss Meeting, 1879. 
Salem, 1880.—This exte nded memoir treats of the “acids existing 
humus” according to chemists, or feibon « some chemists, and of 
mineral Aas silicifications and many ah of its a se 
wish t 
pitted of crystals of the amazon stone from Colorado, 
rutile and brookite from Arkans sas, yen some other species. 
3. — of the Nuttall Ornithological Club, Ca mbridge, 
Mass.—No. 4 of the fifth volume of the eros! bulletin 
m 0 
n an article by Dr. Coues, “ Behind the Veil,” bee eo 
ence to much of peculiar turret: not only in the personal his- 
tory of Wilson and Audubon, but also in the early patery of 
ee Ornithology itself. 
4, Life on the Seashore, or — sa our pais ps glee ; 
by James H. Emerron. 138 mo, 161 cu George A. 
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cerning the habits and transformations uf many of these aiken 
