598 EXPERIMENT STATION RECORD. 



A(jr. AVc'.s- [JhirlxidoH], 2 (lOO^i), So. Sr>, ji. 270). — " Tlu' author utates that one part of 

 etroiij^ liijuor ainiiionia' in 4,000 parts of water is fatal to the mature mosquito larva, 

 and concludes that the addition of nitrogen compounds to surface waters, through 

 tlu' medium of actively nitrifying soils, should jirove an effective means of checking 

 the multiplication of mosquitoes and of preventing malaria." 



Bees and bee keeping, II. Pxllak, Jr. {Rpl. Supt. Farmers^ Inst}<. Brithh Colum- 

 bia, 4 {1902), pp. 37-40). — A brief outline is presented of the operations which are 

 necessary in the successful management of bees, including notes on drones, hives, 

 swarming, honey plants, etc. 



The use of bee escapes, E. Bertrand {Rev. Internal. Apicull., 25 {1903), No. 

 10, pp. 201-203, figs. 2). — A Vjrief description of the mechanism of these devices and 

 on the advantages of using them in the management of bees. 



Means of ridding combs of the larvae of drones, N. Barthelemy {Rev. Inter- 

 mit. Apicull., 25 {1903), So. 10, pp. 207, 20S). — The author calls attention to the 

 desirability of examining the combs for the presence of male larvfe, and gives brief 

 notes on practical methods for removing them from the comb. 



Experiments with, the glossometer, J. Maistre {Rev. Internal. Apicull., 25 

 {1903), No. 10, pp. 198, 199). — The author made a number of measurements of the 

 tongues of bees for the purpose of determining the possible effect of crossing Italian 

 and native bees upon the lengthening of the tongues. The results are encouraging, 

 but not yet conclusive. 



Silk industry of the United States and of France, J. C. Covert ( U. S. Consular 

 R]}tf<., 73 {1903), No. 279, pp. 625-628). — Statistics are given on the value of silk fab- 

 rics produced in the United States and France and on the general conditions of this 

 industry. 



• FOODS— NUTRITION. 



Foods; their composition and analysis, A. W. and M. W. Blyth {New York: 

 D. Van Nostrand Co., 1903, 5. ed., pp. 616).- — The authoi's state that this volume has, 

 to a great extent, been rewritten, much new material being added to the text, as well 

 as new tables and diagrams. Chapters on the detection and estimation of arsenic, 

 the composition and analysis of spices, and the bacteriology of water constitute a part 

 of the new material. 



The microscopical examination of food and drugs, H. G. Greenish {London: 

 J. and A. Churchill, 1903, pp. 321, pis. 168; rev. in Public Health, 16 {1903), No. 2, p. 

 99). — "The book is divided into 12 sections, dealing respectively with starches, hairs 

 and textile fibers, spores and glands, ergot, Avoods and stems, leaves, barks, seeds, 

 fruits, rhizomes and roots, with 2 apjaendices, one on the preparation of reagents and 

 the other on the varieties of cell wall and cell contents." 



Directions are given for preparing and mounting specimens, and much information 

 is included regarding the foods, etc., descril)ed. 



The acid content of bread or similar bakers' goods, A. Schmid {Jahresber. 

 Thurgau. Kanton. Lab., 7 {1902); abs. in Ztschr. Untersuch. Nahr. u. Genussmtl., 6 

 {1903), No. 21, p. 1008). — As shown by the results of 26 analyses of goods from 4 

 bakeries the acid content varied from 2 to 9 degrees. The acid content of 9 samples 

 of grits varied from 2.5 to 3.7 degrees. 



Analyses of bakers' goods, Balland {Jour. Pharm. el Chim., 6. ser., 16 {1902), 

 No. 11, pp. 533-535; ab.9. in Ztschr. Uiiterstich. Nahr. u. Genussmtl., 6 {1903), No. 21, 

 p. 1009). — Analyses are reported of a number of Ijiscuits, cakes, and similar goods. 



Concerning tropical flours and starches used as foods, Balland {Jour. Pharm. 

 et Chim., 6. ser., 17 {1903) , No. 10, pp. 476-478). — Analyses are reported of ape starch 

 {Arum macrorhizum) , conophallus meal from tubers of an Amorphophallus, tavolo 

 starch ( Tacca pinnatifida) , mape starch {Inocarpus edidis), nete meal {Parkia biglobosa), 

 arrowroot {Maranta arundinacea), banana meal, caryot starch {Caryota urens), sago 



