784 EXPEKIMENT STATION^ RECORD. 



AttacHti orlzaha and Boinhi/x rnorl in order to test the effect of these coloring matters 

 upon the silk produced. It was found possible to influence the color of silk by the 

 pigment matters used, the influence being exercised through the agency of the blood. 



Observations on termites, or white ants, G. D. Haviland {Smithsn. Inst. Rpl. 

 1901, j)j). <;i!7, 67S, jd-'i. 4)- — Xotes are gi ven on the anatomy, classification, and biology 

 of various species of white ants, especially Malayan. South African, and Bornean 

 species. 



Mosquito development and hibernation, J. W. Dupree and H. A. jNIouoan 

 {Science, n. ser., 16 [1902), X(j. 41', pp- 10S6-1038). — Brief notes are given on the 

 results of the authors' observations upon a number of species of mosquitoes. It is con- 

 cluded from these observations that boat-shaped masses of eggs are not general, that 

 the eggs <^f most species sink when the water is agitated, and that the eggs hatch when 

 separated and shaken to the bottom. It was also found that the hatching of the 

 eggs is irregular and may be postponed for a longer period as the result of the drying 

 up of pools. The larval period may be much prolonged by insufficient food supply 

 and low temperature. It is considered quite exceptional for any mosquitoes, includ- 

 ing Culex sollicitann, to deposit eggs elsewhere than in water. 



Observations on the Anopheles in the suburbs of Paris, Edmond and Etienne 

 Sergent {Ann. Jm^t. Pa.'<teur, 16 {1902), No. 12, jyp. 940-946). — Notes are given on 

 the species of Anopheles and other mosquitoes found in the vicinity of Paris. The 

 habits and life history of these species are discussed. A reference is made to the 

 natural enemies of the mosquitoes as determined by aquarium experiments and 

 under natural conditions. Attention is called to the difficulty of determining the 

 duration of the life of the larvic and pupa? on account of the great variations due to 

 different external conditions. 



A study of Anopheles on the Isthmus of Suez, Cambouliu {Cmnpt. Rend. 

 Acad. Scl. Paris, 135 {1902), No. 17, pp. 704-706). — Brief descriptive and economic 

 notes on 3 species of Anopheles, 2 of which are not named, while the third is A. 

 ph.aroeiisls. 



Beekeeping and the drought, A. Gale {Agr. Gaz. Neiv Soutlt HV(/^.s, IS {1902), 

 No. 10, pp. 1036-103S). — On account of the unusual drouglit in New South "Wales 

 during the years 1901 and 1902, great difficulty was experienced in producing suffi- 

 cient quantities of bee plants for a satisfactory honey yield. Brief notes are given 

 on the extra care and precautions which may be required in preventing the develop- 

 ment of disease among the weakened swarms. 



Silk — its origin, culture, and manufacture {Flovence, Mass.: The Nonotuck Silk 

 Co., 1902, pp. 53, figs. 38). — Brief notes are given on the discovery and introduction of 

 silk, the culture of silkworms, and the reeling and other processes connected with 

 the manufacture of silk. 



Silk culture, G. McCarthy {North Otrol'ma Sta. Bid. 181, j)pj. 54, figs. 15). — A 

 revised form of an article already referred to from another source (E. S. R.,13, p. 876). 



Statistics of bees, honey, and wax {Twelfth Census United Slides, Census Repts., 

 rol. 6 {Agricidtnre, }>t. l),pp. CCNNXII-('CXXXVII). — Brief notes are given on the 

 history of the introduction of bee raising into this country. According to the pres- 

 ent census there are in the United States 4,109,626 swarms of bees, with a value of 

 110,186,516. The total production of honey in 1900 was 61,196,160 lbs., of wax, 

 1,765,315 11)S., which together represented a value of 16,664,904. 



FOODS— NUTRITION. 



The baking quality of flour and its estimation, G. Hamann {Inang. Diss., 

 Univ. Jena, 1901, pp. 122). — Comparative studies of the different methods of estimat- 

 ing the baking quality of wheat flour are reported and a method proposed which 

 depends on the fact that the nitrogenous material in different sorts of wheat varies 



