580 EXPERIMENT STATION RECORD. 



the least, danger of causing harm to plants and the most effective results in the 

 destruction of insect pests. 



Motive power in spray outfits, YV. L. Summers (Jour. Ayr. and 1ml. Smith Aus- 

 tralia, 8 ( 1904), No. 2, pp. 81-88, figs. ..').— An account is given of the comparative 

 advantages to be derived from the use of power spraying outfits together with esti- 

 mates of the cost of manipulating hand power and gasoline power outfits. 



Brief notes on mosquito larvae, II. R. Dyak {Jour. New Yuri; Ent. Sue, 12 {1904), 

 No. /, pp. 243-246).— The appearance and habits of the larvae of a number of species 

 of mosquitoes are briefly described. The name Culex aestivalis is proposed in the 

 place of C.reptans for a species of mosquito which proves not to be identical with 

 C. reptans of Europe. 



Mosquitoes or Culicidae of New York State, E. P. Felt {Neiv York State Mus. 

 Bui. 79, pp. 241-400, pis. 57, figs. 113).— In this bulletin the author presents a sum- 

 mary of the knowledge which has thus far been obtained regarding the habits and 

 life history of mosquitoes, and also their agency in the transmission of malaria, 

 yellow fever, filariasis, etc. 



A discussion is presented of the distribution and abundance of mosquitoes, their 

 migration during flight, life history, means of collecting and breeding, usual breed- 

 ing places, natural enemies, and methods of control. The greater portion of the 

 bulletin is occupied with a detailed description of the various species found in New 

 York. A bibliography containing the more important references to American species 

 of mosquitoes is appended to the bulletin. 



The eggs of Culex territans, F. Knab {Jour. New York Ent. Soc, 12 {1904) , No. 4,pp- 

 246-248). — The eggs of this species were found in considerable numbers attached to 

 the sides of rain barrels some distance above the surface of the water. The eggs of 

 the same species were also found at the margin of ponds attached to tussocks of 

 grass. It is believed that they do not hatch until they come in contact with the 

 water. The egg cluster contains about 130 eggs. 



In western Massachusetts C. territans appeared to be the only species of this genus 

 which bred in large numbers and continuously throughout the summer. 



National Mosquito Extermination Society {Nat. Mosquito Extermination Soc. 

 Bui. 1, pp. 41, figs. 5) . — In this bulletin a number of biographical notices are given of 

 men most actively identified with the movement for the extermination of mosquitoes 

 in this and other countries. The objects of the National Mosquito Extermination 

 Society are stated, and brief accounts are given of some work already carried out in 

 the destruction of mosquitoes. 



Disappearance of the tsetse fly, J. W. Arnold {Natal Agr. Jour, and Min. 

 Rec., 7 {1904), No. 10, pp. 928, 929). — The author relates his experience with the 

 tsetse fly in Zululand. It appears that this insect may apparently disappear for a 

 year or more in a given district and may then reappear in the usual numbers. 

 Wherever big game and other wild animals are found along the coast belt there 

 appears to be no assured safety from tsetse-fly attacks. 



FOODS— NUTRITION. 



Air, water, and food from a sanitary standpoint, Ellen H. Richards and 

 A. G. Woodman {New York: John Wiley & Sons; London: Chapman& HaU, Ltd., 1904, 

 2 ed., pp. 262, figs. 13, map 1). — The authors state that in preparing the second edition 

 of this useful text-book, the chapters on analytical methods have been considerably 

 enlarged with a view to making the w T ork more adapted to the needs of chemical 

 and sanitary engineers, as well as to general students and householders. The biblio- 

 graphical data, which is a feature of the book, has also been revised and extended. 



Preservation of flour by cold, Balland ( Compt. Rend. Acad. Sci. Paris, 139 



