384 EXPERIMENT STATION RECORD. [Vol. 37 



14 weeks old. Hens from a blackhead farm and from a farm free from turkeys 

 did not convey the disease to the incubator turkeys on uninfected land. 



It is concluded that the infection is either not transmitted at all or only under 

 exceptional conditions by turkeys in the early acute stage. It is considered 

 as probably carried and shed by those birds which have successfully passed 

 through an attack. 



Note on coccidla in sparrows and their assumed relation to blackhead in 

 turkeys, T. Smith and E. W. Smillie {Jour. Expt. Med.. 25 {1917), No. S, pp. 

 415-420). — This is a report of an investigation carried on in connection with 

 those above noted. 



" Of 54 sparrows examined in or near Princeton, coccidia were found in 43, 

 or 80 per cent. Most of the negative cases were encountered in November and 

 December. In the summer and fall practically all were infected. These figiires 

 agree closely with Hadley's [E. S. R., 26, p. 187] who found 79 per cent infected 

 from May to December. Cultures of feces on agar showed that, at least in 

 this locality, the infecting species belongs to the genus Isospora or Diplospora 

 and not to Eimeria." 



RTJEAL ENGINEERING. 



Report of the superintendent of public works, Hawaii, C. R. Forbes {Rpt. 

 Supt. Pub. Works Haicaii, 1916, pp. 87, figs. 15). — This report contains sec- 

 tions on road construction, drainage, reclamation, and sanitation projects in the 

 islands. 



Surface water supply of New Mexico, 1915, J. A. French {Santa Fe, 

 N. Mex.: State Engin. Dcpt., 1915. pp. 149).— This report gives the results of 

 measurements of flow made on streams in New Mexico during 1915, and the 

 results of studies of evaporation from water surfaces made near Deming and 

 Farmington, N. Mex. 



Surface water supply of lower Columbia River and Pacific drainage basins 

 in Oregon, 1914 {U. S. Geol. Survey, Water-Supply Paper S94 {1917), pp. 7- 

 180-\-XLIX, pis. 2). — This report, prepared in cooperation with the States of 

 Oregon and Wa.shington, pre.sents the results of measurements of flow made on 

 streams in the lower Columbia River basin and on the Cowlitz, Rogue, Umpqua, 

 Wilson, and Nehalem River basins during 1014. 



The usual appendix on stream-gaging stations and publications relating to 

 water resources is included. 



Pump irrigation in Nebraska. E. E. Bkackett and O. W. S.togren {Nebraska 

 Sta. Circ. 2 {1917), pp. 28. figs. 21). — This bulletin gives data on the design. 

 Installation, and cost of irrigation pumping plants including wells, with special 

 reference to Nebraska conditions, and is based on a study of the installation 

 and operation of pumping plants in Nebraska and other States. 



A bibliography of 14 references is included. 



Note on the irrigation of the ChelifE plain in the department of Oran 

 [Algiers], ViELLE {Ann. Ponts et Chaussi^es, 9. ser., S5 {1916). pt. 1, \o. 5. pp. 

 166-187, figs. 7). — This report deals with the general engineering features in- 

 volved in the irrigation of an area of about 25,000 hectares (about 61,7.50 acres) 

 in an Algerian dependency. 



Farm drainage in Virginia, D. L. Yarneix {Dcpt. Agr. and Immigr. Va., 

 Farmers' Bril. 26. pp. 30. figs. 11). — The purpo.se of this bulletin is to give 

 definite information regarding methods of removing excess moisture from wet 

 soils, with particular reference to Virginia conditions. The most space is de- 

 voted to the planning, construction, and cost of tile drains. Two brief sections 



