490 EXPERIMENT STATION RECORD. 



work for the HiininuT of 1901 (j)]). 200-204), tlic food of the ln-ook In.ut (pp. 204- 

 217), life historii'H of dragon flien (pp. 218-279), and lift- histories of Diptcra (pp. 

 279-287); the.Me 4 artiel(>s l)einj>; ])repared by J. (i. Needhain. 



The bulletin also contains a discussion of a(]uatic Chrysomelida', by A. D. 

 MacGillivray (pp. 288-327); aquatic nematocerous Diptera, by 0. A. Johannsen 

 (pp. 328^41); and the Sialidid;e of North and South America, by K. C. Davis (pp. 

 442-486) . It is well illustrated, and is intended as a basis for the study of the eco- 

 nomic relations ot aquatic insects and food fishes, and for the stimulation of similar 

 lines of inv(>stit:ation by students in entomology and economic zoology. 



Remedies for insects, C W. AVoodworth {California Sta. Oirr. 7, j>]>. 1!)). — This 

 is a second revision of Bulletin 115 of the same station (PI R. R., 9, pp. 157, 158). 



Fumigation, W. J. Allen {Agr. Gaz. New Smith Wab's, 14 {190:i), No. 7, pp. 597- 

 606, pi. J, figs. S). — The chief causes of failure in fumigation are l)elieve<l by the 

 author to be carelessness in estimating the size of the tree, fumigating at the wrong 

 time, and carelessness in weighing cyanid. Attention is called to the necessity of 

 exercising care in estimating the volume of the tent, in keeping all holes in the tent 

 closed, and in weighing the cyanid and sulphuric acid. The best time for fumigating 

 in New South Wales is believed to be in June and February, and it is recommended 

 that the work be done at night. Extensive tables are presented showing the amount 

 of chemicals to be used for trees of various sizes. 



Sarcopsylla gallinacea in Europe, C. Tiraboschi [Arc]). Farasit., 7 {190S), No. 

 1, 2^p. 1'24-13'2). — Notes are given on the hal)its and life history of the hen flea as 

 observed in various parts of Europe. This insect is also reported as occurring quite 

 commonly on various species of rats, and these animals may therefore be held 

 responsible to some extent for distributing the fleas. 



Observations on the Culicidae, L. Dye {Arclx. Parasit, 6 {1903), No. 3, pp. 359- 

 376, figs. 5) . — Descriptive notes are given on Myzorhynrhus coustani and Sfrgomyia 

 fasdata. The habits and life history of these species are mentioned in detail with 

 special reference to the agency of S.fasciata in transmitting yellow fever. The liter- 

 ature of the subject is reviewed in connection with a brief bibliography. 



Studies on Culex and Anopheles, B. Galli-Valerio and Jeanne Rociiaz-De 

 JoNGH (.1//). <Sbc. Studi Malaria, 4 {1903), pp. 3-48, fig. i).— The authors studied the 

 conditions under which mosquitoes might successfully breed and made a number of 

 experiments in testing the effect of various impurities in water in which were found 

 the eggs and larvse of mosquitoes. During these experiments a test was made of the 

 effect of elevation of temperature of the water upon the eggs of the mosquitoes, and 

 also of the effect of desiccation and various insecticides upon the eggs and larvae. It 

 was found that a temperature of 40° C. is required for destroying all the larvfe in 

 water. Attention is called to the great importance of draining small pools or ponds 

 or treating them with kerosene oil in order to prevent the undue multiplication of 

 mosquitoes. 



The habits of the larvae of Anopheles in relation to hydraulic engineering, 

 E. Perrone {Atti. Soc. Studi Malaria, 4 {1903), pj). 40-58). — The author calls atten- 

 tion to the great multiplication of mosquitoes which may take place in pools of 

 water in excavations for 1)uilding sites or for other purposes of construction. 



Forty years among the bees, C. C. Miller {Chicago: George W. York d- Co., 

 1903, }>p. 327, j)p. 111). — A popular account of the general subject of rearing and 

 managing bees, with notes on the recent methods of feeding and wintering bees, 

 swarming, and care and manipulation of bee products. 



The combination of swarms of bees, A. Delepine {Jour. Agr. Prat., n. ser., 6 

 {1903), No. 42, p. 510). — The author describes briefly 2 methods of bringing about 

 the combination of 2 swarms of bees, viz, that in which the 2 hives are placed 

 side by side, and the method of superposition. 



