284 The Microscope. 



PVBLI CAT IONS 



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Transactions of the Kansas Academy of Science, 1889. 8 

 vo., pp. 189. Topeka. — The paper by V. N, Kellogg on the Mal- 

 lophaga, the bird-lice, merits special attention, since these par- 

 asites have received but little notice by entomologists and mi- 

 croscopists. The author gives an analytical table of the genera 

 which must prove very useful t© students. 



Report of the examination by means of the microscope 

 OF the specimens of infusorial earths op the Pacific coast 

 OF the United States. By Dr. A. M. Edwards. Svo., pp. 29. 

 Newark, N. J.: The Author. — Dr. Edwards has studied diato- 

 maceous deposits from Puget Sound to the southernmost borders 

 of California, and in this pamphlet embodies his conclusions as 

 to their origin, gives lists of the forms found in the various 

 localities, and enters quite extensively into the geology of the 

 subject. In reference to the origin of the Diatoms, he says : 

 " Some experiments that I am making would seem to point to 

 the fact that the Diatomacese originated in fresh water and were 

 carried down to brackish water and so on to the sea. Brackish 

 forms, as Nitzschia scalai-is, E., have been seen growing in great 

 profusion in a fresh water pond without any outlet, and brackish 

 forms . . . have been grown in fresh water. The concentration 

 of fresh water in the Western lakes, as at Lake Bonneville and 

 Lake Lahontan, have resulted in brackish water." The type 

 setting and press work were done by the author. 



Constitution and By-Laws op the Northwestern Micro- 

 scopical Society, St. Paul, Minn. 



Electricity — Its Application in Medicine. Dr. Wellington 

 Adams. Sq., lOmo., 2 vols., pp. 113, 129. Detroit: Geo. S. 

 Davis. Price, .^O cents. 



BuL. OF THE Scientific Laboratories of Denison Univer- 

 sity. 



