578 EXPEEIMENT STATION KECORD. [Vol.35 



ments by feeding flies en eggs from Davainea cesticillus and D. tetragona wer© 

 negative. 



" The habits of the birds are important factors to be considered in experi- 

 mental worli for life-history studies. Certain insects are found in great num- 

 bers around chicken houses and yards and are readily eaten by the birds. Flies 

 are known to contain the larval stage of one species of cestode, and some other 

 species of insects are to be considered as probable intermediate hosts for other 

 species of cestodes. 



" The symptoms and effects of the infection from tapeworms vary with 

 individual birds, age of birds, and the degree of infection. Birds infested with 

 worms display an emaciated, unthrifty condition, an unnatural desire for 

 food and water, and a marked diarrhea,' with droppings of a characteristic 

 yellowish-brown color. 



" The control of tapeworm disease in chickens is in an unsettled condition. 

 Little can be done until more is known concerning life histories of worms. Pre- 

 ventive measures are urged rather than curative measures. Droppings should 

 be cared for and treated with appropriate substances in order to prevent 

 insects from feeding on them or developing in them. Experiments by giving 

 lye with food to infested chickens showed satisfactory results in removing 

 tapeworms. 



" The flocks of chickens that were studied showed at times a very heavy 

 infection, and nearly every bird examined harbored one or more species of 

 worms. Five species were found in the chickens at Hardy, Nebr., and three in 

 the birds at the poultry farm at the University of Illinois. The species found in 

 Nebraska are D. cesticillus, D. tetragona, D. echinobothrida, Hymenolepis 

 carioca, and C. infundibuliformis. At the poultry farm of the university the 

 species D. cesticillus, D. echinobothrida, and E. carioca were found." 



RIJEAL ENGINEEaiNG. 



Annual report of tlie agricultural engineer during 1914—15, W. M. Schutte 

 {Ann. Rpt. Dept. Agr. Bombay, 1914-15, pp. 72-87). — This is a report of the 

 activities of the agricultural engineer's office, which included experiments on 

 implements and machinery, power, irrigation, water supply, and mechanical 

 cultivation. 



Methods of stream gaging, W. S. Pardoe (Engin. News, 75 (1916), No. 19, 

 p. 889). — This is a mathematical analysis of computation methods generally 

 used. 



Surface water supply of the Great Basin, 1913 {U. S. Geol. Survey, Water- 

 Supply Paper 360 {1916), pp. 293, pis. 2, fig. 1). — This report, prepared in coop- 

 eration with the States of Utah, Nevada, California, Oregon, and Idaho, pre- 

 sents the results of measurements of flow made during 1913 on streams in the 

 Great Salt Lake and Sevier Lake basins, minor basins in Nevada, Humboldt- 

 Carson sink basin. Pyramid and Winnemucca lakes basins, Surprise Valley, 

 and Honey, Warner, Abert, Silver, Malheur, and Harney lakes basins. 



Surface water supply of St. Lawrence River basin, 1914, W. G. Hoyt, A. 

 H. Horton, C. C. Coa-ert, and C. H. Pierce {U. S. Geol. Survey, Water-Supply 

 Paper 384 {1916), pp. 128+XXIX, pis. 2). — This report, prepared under the 

 direction of N. C. Grover and in cooperation with the States of Minnesota, 

 Wisconsin, New York, and Vermont, contains the results of measurements of 

 flow made in 1914 on streams tributary to Lakes Superior, Michigan, Huron, 

 Erie, and Ontario and to the St. Lawrence River. 



Surface water supply of the Lower Mississippi River basin, 1914, N. C. 

 Geover, R. Follansbee, and G. A. Gray {U. S. Geol. Survey, Water-Supply 



