96 THE AMERICAN MONTHLY. [April, 



The Educator. Buffalo, N. Y. Vol. I, No. i. 



This is a monthly devoted to the education of young men and women 

 in the current events of the day. It is also intended as a repositor\ of 

 w^hat is of most importance in periodical literature. It has three depart- 

 ments devoted, respectively, to current history, current literature, and 

 current science. Under current history is given proceedings of Con- 

 gress, State legislatures, and of foreign legislative bodies, an explanation 

 of the most important political and social events, biographical sketches. 

 Current literature is devoted principally to reviewing such works as 

 are of importance to the younger portion of society, especially to teachers 

 and to students in high schools and colleges. In the pages devoted to 

 current science is found a description of the new and important inven- 

 tions, likewise an account and explanation of new discoveries in the 

 sciences — chemistry, physics, astronomy, etc. 



Ultimate Finance; A True Theory of Wealth. By William Nelson 

 Black. Humboldt Publishing Company. New York. 

 This is part second of an economic work begun in the September 

 number of the Humboldt Library of Science. The first two chapters 

 treat of the origin of property and the evolution of wealth, the third and 

 fourth discuss the principles and possibilities of banking and insurance, 

 and the fifth, sixth, and seventh are devoted to a correction of the manv 

 misconceptions that abound on the nature of accumulation and the ad- 

 ministration of property. The second chapter seems to be intended to 

 show the reactionary character of theories of land confiscation. But 

 the main purpose is- an exposition of the theory of bonded insurance. 

 The book defines a system which, if found organically practicable, will 

 enable men to carry insurance always without sacrifice of personal re- 

 sources, and sometimes with considerable gain. This is promised by 

 giving to the person contributing to an insurance fund the increase to 

 be drawn from investment and profits. 



SUBSCRIBERS' NOTICES. 



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

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



WANTED. — Unmounted microscopical material, also m'crographic dictionary. Will exchange or 

 buy. CHARLES VON EIFF, 124 Clinton Place, New York City. 



WANTED. — A clean copy of Rev. William Smith's Briti'ih Diatoms, and Schmidt's Atlas of the 

 Diatomacese. JAMES B SHE.ARKR, Bay City, Mich. 



WANTED. — To give diatom slides and cash, or either, for copy of V.^n Heurck's work on diatoms, 

 bound or unbound. ALBERT MANN, Jr., Newark, N. J. 



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

 (British) for American species. E. BOS lOCK, Stone, Staffordshire. 



WANTED. — Specimens of rocks for slicing and grinding into sections; also bones and teeth of differ- 

 ent animals, diaton-s iusitu on algae, dip.tomaceous and polycislinous earths, ocean soundings, etc., etc. 

 Liberal exchange in microscopic slides or cash, 



ARTHUR J. DOHERTY, 63 Burlington St., Manchester, Eng. 



TO EXCHANGE. — Native gold, silver, copper, lead, zinc, and other beautiful cabinet specimens, 

 polished orn;iments and sections of p trifled wood — Chalcedony — and naiive turquois-, ag.ite, amethyst, 

 rubies, etc.; also Indian ornaments, curios, arrows, bl.inkets, pottery, etc.; pelts of wild animals, species 

 of native cactus, and a good second hand " Burt's Solar Compass " complete. .Any or all of the above 

 arc offered in exchange fpr new, or good second-hand, objectives, condensers, polarizers, stand, or other 

 microscopical apparatus. W. N. SHERMAN, ^L D., Kingman, Arizona. 



