244 THE AMERICAN MONTHLY. [October, 



NOTICES OF BOOKS. 



TJie Industrial Revohitio)i of tJie i8th Century in Eiigl aiid. By 

 Arnold Toynbee. Humboldt Publishing Company, New York 

 (Price, 60 cents.) 

 The point of view of the author of this important work is that of one 

 who, while he admits the benefits conferred upon mankind by the old 

 school of political economists — Adam Smith, Ricardo, Alalthus, and the 

 rest — believes that their work is done, and that the world has got be- 

 yond them, and stands in need of something more. The work is a 

 history of " the bitter argument between economists and human be- 

 ings^" to use the striking phrase of his chapter on " Ricardo and the 

 old political economy." When the economic relations of men are 

 studied by an observer who, to abundant learning, adds the quality of 

 human sympathy, the result is no "• dismal science." Besides the trea- 

 tise named above, the present work contains three popular addresses on 

 '^ Wages and Natural Law," "• Industry and Democracy," and "Are 

 Radicals Socialists.''" as also papers on " The Education of Co-opera- 

 tion," and *•' The Ideal Relations of Church and State." 



SUBSCRIBERS' NOTICES. 



[These notices will be given six insertions in this column at 25 cents per line or fraction thereof. 

 FOR EXCHANGE.— Slides of selected diatoms. D. B. WARD, Poughkeepsie, N. Y. 



OFFERED, — Diatomaceous Earth from Uiah (Desert) for Histological Mounts. 



PROF. ORSON HOWARD, Salt Lake City, Utah. 



CORRESPONDENCE invited with a view 10 the exchange of either mounted or unmounted Oribatida 

 (British) for American species. E. BOSTOCK, Stone, Staffordshire. 



WANTED. — Any works on Microscopy not already in my Library. 



H. M. WHELPLEY, F. R. M. S , St. louis, Mo. 



First-class Histological Slides for other good mounts ; Histological and Pathological material cut on 

 shares. S. G. SHANKS, M. D., 547 Clinton Ave., Albany, N. Y. 



WANTED. — A clean copy of Wolle's Fresh-Water Algce of the United States (2 vols.) ; also good 

 second-hand Grunow Camera-Lucida, and a sell-centering I'urn-table. 



JOS. P. THOMPSON, P. O. Box 1383, Portland, Me. 



FOR SALE CHEAP. — New Gundlach j'^ homogeneous- immersion objective, for jV g'ycerine or 

 water objective, J. ]\L ADAMS, Watertown, N. Y. 



FOR SALE. — Beautiful photo-micrographs of P. angulatum. Only i'^ cents each. 



J. E. BAKER, M. D., Wyoming, Ohio. 



WANTED.— Proceedings Am. Acad. Sciences, XI, 1S76. 



C. W. SMILEY, Washington, D. C. 



FOR SALE OR EXCHANGE. — Mosquitoes, male and female. Price 75 cents each. Will ex- 

 change only for first-class mounts. E. W. SHARP, 2800 Richmond St., Philadelphia, Pa. 



A ^^5 MICROSCOPE.— Made on proper scientific principles. Magnifies 100 diameters or 10,000 

 limes. For other interesting articles send for list of Popular Scientific Specialties. 



G. S. WOOLMAN, 116 Fulton St., New Yoik. 



SPECIAL BARGAIN in histological slides, 



\VM, N. BEGGS, M. D., 2207 Sidney St., St. Louis, Mo. 



FOR SALE". OR EXCHANGE.— Photo-micrographs of P. angulaium taken through Spencer's 

 I'jj H. I., 2400 diameters. Also photo-micrographs of bacteria, diatoms, etc.. 25 cents each. Will ex- 

 change for well-mounted slides. Dk. J. E. BAKER, Wyoming, Ohio. 



