CONTENTS. VII 



Page. 



Duty of well water on irriirated crops in Rio CJrande Valley, Vernon et al 288 



]'ul)lic roads: Mileajje and expenditures in 1904 289 



An experiment in dust prevention 289 



Tar and oil for road iini^rovement: Experiments at Jackson, Tenn 289 



The oilinj; and tarring of improved roads 290 



Concrete-block industry as an adjunct to a<rriculture, Freund 290 



Number and distril)ution of silos in Wisconsin, Knapp 290 



Motor trucks and motors at the fifth autouKjhile show, Hardy 290 



Accidents by farm machinery, Knapp 291 



Alcohol in (gasoline engines, Lonjianecker 291 



L)euaturized alcohol in France 291 



KL'KAI. ECONO.MICS. 



Causes affectinir farm values, Holmes 291 



Agriculture in the United States, Macfarlane 292 



Tlie world's agriculture, Macfarlane 292 



Relations of buildings, live stock, an<l implements to capital, Clausen 292 



Rural credit institutions: Mutual funds, Gillieron-Duboux 293 



Crop Reporter 293 



Agricultural statistics, 1905 293 



Agricultural returns of (ireat Britain, 1906 293 



ACiRICULTURAL EDUCATION. 



Agricultural education, Stewart 293 



The educational element in agriculture, Colson 293 



Agriculture 293 



Elements of agriculture 294 



Elementary agriculture with practical arithmetic, Hatch and Haselwood 294 



Teaching horticulture in public schools, Hallock 294 



Use of illustrative material in agriculture in rural schools, Crosby 294 



Nature study and elementary agriculture for schools, True and Crosby 294 



Foundations of chemistry as seen in nature study, Brittain 295 



MISCELLANEOUS. 



Yearbook of the Department of Agriculture, 1905 295 



The Deiiartment of Agriculture and the experiment stations, Allen 295 



Report on agricultural investigations in Alaska, 1905, Georgeson 295 



Report on agricultural investigations in Hawaii, 1905, Smith 295 



Report on agricultural investigations in Porto Rico, 1905, May 295 



Nineteenth Annual Report of Arkansas Station, 1906 296 



Eighteenth Annual Report of Massachusetts Station, 1905 296 



Nineteenth Annual Rejiort of Nebraska Station, 1905 296 



Fifteenth Annual Report of Oklahoma Station, 1906 296 



Annual Report of Pennsylvania Station, 1905 296 



Twenty-second Annual Report of Wisconsin Station, 1905 296 



Accessions to the Department library, April-June, 1906 296 



