8o 



THE AMERICAN MONTHLY 



[Apr., 1883. 



also notice articles presented on Seeds, 

 Algae, Mosses, Reagents and their Use, 

 The Life of Darwin, Darwinism, and 

 other subjects. Prof. W. B. Carpenter 

 was present at one of the meetings, and 

 Prof. W. A. Rogers on another occasion, 

 spoke on the subject of ruling lines on 

 glass. 



NOTICES OF BOOKS. 



Annual Report of the Chief Engineer of 

 the Water Department to the City 

 Council of Wilmington, for the year 

 1882. Wilmington," Del. : The James 

 &Webb Printing and Stationery Com- 

 pany, 1883. (Pamphlet, pp. 48, 83, 88.) 



This report contains also a report by 

 Prof. Albert R. Leeds on the water sup- 

 ply of Wilmington, including analyses of 

 waters from Brandywine River and from 

 other streams, and another report by 

 Prof. Ira Remsen on some analyses of 

 waters. 



Annual Address delivered before the 

 American Academy of Medicine, at 

 Philadelphia, October 26th, 1882, by 

 Trail Green, A.M., M.D., President of 

 the Academy. Philadelphia: 1883. 

 (Pamphlet, pp. 16.) 



The subject of the address was "A 

 Retrospective Glance at the Origin and 

 Progress of the Academy." 



Notes on American Parasitic Copepoda. 

 No I. By R. Ramsay Wright, M.A., 

 B. Sc. Professor in University College, 

 Toronto. (Pamphlet, pp. 12, with 2 

 plates.) 



This is a collection of notes on three 

 species with full descriptions, two of 

 which are new, with carefully drawn illus- 

 trations of different parts and organs. 



Report of the Commissioners on Investi- 

 gation of Water Supply of the City of 

 Boston. [Document 129 — 1883.] 



This is a pamphlet of 186 pages, em- 

 bracing full reports of the testimony of 

 eno'ineers, scientific men, and private 

 citizens concerning the condition of the 

 water-supply of Boston and the cause of 

 its contamination. It is a very useful 

 document for reference for any person 



who is engaged in studying the water- 

 supply of towns, for the opinions of com- 

 petent observers are given in the form of 

 detailed reports of examinations before 

 the Commissioners. 



The Percentage of College-bred Men in 

 the Medical Profession. A paper read 

 before the American Academy of Medi- 

 cine, at its Annual Meeting in Phila- 

 delphia, October 27, 1882. By Charles 

 Mclntire, Jr., M.D., of Easton, Penn. 

 Printed by Order of the Academy. 

 Philadelphia: 1883. 



The Storage of Electricity. By Henry 

 Greer, Member of the New York Elec- 

 trical Society, American Geographical 

 Society, etc. Illustrated. New York: 

 College of Electrical Engineering. 

 (Pamphlet, pp. 42, price $1.00). 



This seems to be a useful corppendium 

 of knowledge relating to the subject of 

 storing electricity, which has become of 

 great importance during the last few 

 years. 



Exchanges. 



Well-mounted sHdesof Polycystina, transparent and 

 opaque, for any well-mounted slide. P. C Cole, M.D., 

 254 West Korty-second Street, New York, N. Y. 



Wanted. — Slides of Bacteria in exchange for other 

 slides, or for cash. J. M. Adams, Watertown, N. Y. 



Wanted. — I will give a good type slide of diatoms, 

 or a slide of arranged diatoms, for a gathering of Pleuro- 

 sigina angtclatum. Thos. Christian, loS Virginia St., 

 Richmond, Va. 



Diatomaceous Material and Histological slides 

 for other well-mounted and named slides of Foramini- 

 fera, Animal Parasites, Pathological subjects, etc. R. 

 Cauch, M.D., Carpenteria, Cal. 



Sections; Kitten's Jaw, teeth in situ, in exchange 

 for first-class slides. Jay L. Smith, 86 Beekman St., 

 New York City. 



FosiL Diatoms from Carson, Nev.. and Tosa Creek, 

 Cal., slides or material to exchange for pood diatoms, 

 mounted or material. Also, many other diatoms; lists 

 exchanged. The above deposits are rich and newly dis- 

 covered by myself. F. H.Engels, M.D., Virginia, Nev. 



For Slides of Diatoms from the Wabash & Erie 

 Canal at Ft. Wayne, send any well-mounted slide to 

 H. C. Tresselt, Fort Wayne, lud. 



