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THE POPULAR SCIENCE MONTHLY. 



A Bibliography of the more Important 

 Contributions to American Economic Ento- 

 mology has been prepared by Samuel Hen- 

 shaw for the Department of Agriculture.- 

 Parts I, II, and III, already issued in one 

 volume, contain the more important writ- 

 ings of Benjamin D. Walsh and Charles V. 

 Riley. Those by B. D. Walsh number 385 

 titles, those by Walsh and Riley jointly are 

 478, while the writings of Prof. Riley alone 

 number 1,555. A general index to the list 

 and indexes of new names proposed are ap- 

 pended to the volume. 



The seventh edition of Bloxam's Chemis- 

 try (Blakiston, $4.50) follows the sixth after 

 an interval of only two years. It has been 

 revised and edited by Prof. John 31. Thom- 

 son and Arthur G. Bloxam, who give the 

 following statement in the preface as to the 

 changes they have made : " In the Organic 

 division of the book an attempt has been 

 made to give concise accounts of more mod- 

 ern research — such as Raoult's method for 

 the determination of molecular formula,, 

 and Fischer and Tafel's investigations on 

 the synthesis of sugars. In the same divis- 

 ion the Chemistry of Vegetation has been 

 in a great measure rewritten to suit more 

 modern views. Those portions of the book 

 relating to Explosives, to which the work 

 to some extent owes its reputation, have 

 been revised, and are treated of as fully as 

 possible within the limits of a general text- 

 book." The volume has been increased in 

 length about ten pages. 



A second edition of The Microtomisfs 

 Vade-mecum, by Arthur B. Lee, has been 

 issued (Blakiston). It is much larger than 

 the original English edition, and in fact is 

 not based upon that, but upon the French 

 work with a different title, by Lee and Hen- 

 neguy, published two years later. Besides 

 including the important advances made in 

 its field since 1885, the present Vade-mecum 

 differs from the first in being much less his- 

 torical and much more critical. The sub- 

 jects of most importance in a technical man- 

 ual have been treated more fully, and those 

 which are less important, or whose best 

 place is elsewhere, have been thrown into 

 the background. Among the chapters that 

 have been extended are those on fixing, im- 

 pregnation methods, paraffin and celloidin 

 imbedding, and the special methods of em- 



bryology, of cytology, and of neurology. 

 The volume has an index, and its paper 

 and print are excellent. 



A Clinical Study of the Skull — the tenth 

 of the Toner Lectures — by Dr. Harrison 

 Allen, is a contribution to the morphologi- 

 cal study of diseased action. The materials 

 on which it is based were found in the Col- 

 lections of the Academy of Natural Sci- 

 ences of Philadelphia and of the College 

 of Physicians, Philadelphia, which together 

 contain more than nineteen hundred speci- 

 mens of skulls. Washington : Smithsonian 

 Institution. 



The March Bulletin of the Connecticut 

 Agricultural Experiment Station is a paper 

 on Fungicides, or applications for such dis- 

 eases as the black rot and the mildew of the 

 grape, by Roland Thaxter. The applications 

 recommended are Bordeaux mixture — sul- 

 phate of copper and quicklime, with water — 

 and ammoniacal carbonate of copper ; which 

 are sprayed over the plants. The treatment is 

 most effectual when it is applied preventively. 



The second year's work of the Agricult- 

 ural Experiment Station of the University 

 of Illinois, ending July 1, 1889, comprised 

 analyses of fodders and of various food 

 products, with numerous items of new work 

 taken up from time to time. Four bulletins 

 were issued, reporting experiments upon 

 oats, upon corn, experiments with ensilage, 

 and experiments of the effects upon the hay 

 of cutting certain grasses and clovers at dif- 

 ferent periods of growth. Bulletin No. 7, 

 November, 18S9, is upon the Biology of En- 

 silage; and Bulletin No. 8, February, 1890, 

 records a series of field experiments with 

 corn. 



The work of the Massachusetts State 

 Agricultural Experiment Station, as pre- 

 sented in its report of 1889, was carried on 

 in the same principal lines of investigation 

 as in preceding years. A very important 

 part of it is represented in the investigations 

 of fungoid diseases by Prof. Humphry. To 

 the experiments for determining the cost of 

 feed for the production of beef and pork 

 were added similar ones respecting beef and 

 mutton. Laboratory work was especially 

 large, and extended in various directions. 



References to the Constitution of the 

 United Stales, which has been prepared by 



