168 THE AMERICAN MONTHLY. [July. 



scopical Society, and as would necessarily be expected the papers re- 

 veal his knowledge of microscopic studies. Throughout the author 

 has shown his familiarity with the writings of Spencer, Huxley, Hitckel, 

 authorities which he cites frequently and discusses intelligently. The 

 author is a thorough and consistent evolutionist and b}' some will be 

 considered bold, holding as he does that transition from not-living 

 matter to living forms is an essential step in the process of evolution. 

 The volume which is published in uniformity with the previous *•• Fact 

 and Theory Papers " presents a neat appearance. 



Practical Sanitary and Economic Cookings adapted to persons of 

 moderate and small jnca?zs. By Mrs. Mary Hinman Abel, j 2", 

 190 pp. American Public Health Association, 1S90. 

 Mr. Henry Lomb, of Rochester, N. Y., offered two prizes in iSSS 

 for an essay on this subject. There were 70 competitors. The first 

 prize of $!^oo was awarded to Mrs. Abel. The committee reported in 

 the highest terms of this essay, and the society has therefore published 

 it. Our own judgment does not differ from that of the committee. In 

 this small compass are presented a sufficient number of recipes, esti- 

 mates of the cost of food, and its nutritive value ; also a great number 

 of valuable suggestions regarding the kitchen and its operations. 

 Everything is so clear and concise as to be quite attractive. The book 

 is sold at mere cost by the secretary, whose address is Rochester, N. 

 Y. The book is so unique in all its aspects that it will demand the 

 notice of scholars and of the best housekeepers as well as of women in 

 families of moderate means for whom it was especially written. It 

 ought to influence the economics of society and prove an aid to the 

 solution of the industrial problems of the day. It will, if'' a penny 

 saved is as arood as two earned." 



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, Poughkecpsie, N. Y.. 



W.'\NTED. — Unmounted microscopical material, also micrographic dictionary. Will exchange or 

 buy. CHARLES VON EIFF, 524 Clinton Place, New York City. 



WANTED.— A clean copy of Rev. William Smith's British Diatoms, and Schmidt's Atlas of ihe 

 Diatomaceae. JAMES B. SHEAR KR, Bay City, Mich. 



OFFERED.— Diatomaceous Earth from U^ah (Desert) for Histoloaicnl Mounis, 



PROF. ORSON HOWARD, Salt Lake City, Utah. 



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

 (British) for American species. E. BOSl'OCK, Stone, Stafford.shire. 



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



H. M. WHELl'LEY, F. R. M. S., St. louis. Mo. 



Labels in exchange for slides. ^3 EUGENE PINCKNEY, Dixon, 111. 



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. 



OFFERED.— Grifi'ith & Henfry Micrographic Dictionary to be sold ; also Hoggs Microscope. 



J. P. WINTINGHAM, 36 Pine St., N. Y. 



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

 second-hand Gruiiow Camera- Lucida, and a selt-centering Turn-table. 



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



FOR SALE CHEAP. — New Gundlach j',; homogeneous-immersion objective, for j,; glycerine or 

 water objective. • J. M. ADAMS, Watertown, N. Y. 



FOR SALE.- — Beautiful photo-micrographs of P. angulatum. Only 2=; cents each. 



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



