RURAL ECONOMICS. 898 



Au extensive section gives costs and bills of material for a number of the 

 barns described. 



The dairy barn at the Kentucky Agricultural Experiment Station, J. J. 

 Hooper {Kentucky 8ta. Bui. 119 (1914), pp. 113-117, figs. 4).— This barn is) 

 described and illustrated. 



Making a poultry house, M. R. Conover (Neio York, 1912, pp. 54, pis. 8, 

 figs. 4)- — This book treat.s in a popular manner with the planning; and con- 

 struction of poultry houses, dealing specifically with such features as floors, 

 foundations, walks, windows, ventilation, doors, nests, roosts, and runs. 



Figuring radiation for kitchens using gas fuel, J. A. Donnelly (Dom. 

 Engin., 6S (1014), A^o. 5, pp. 127, 128). — A formula is suggested for calculating 

 the necessary amount of radiation for heating rooms by hot water which is 

 particularly applicable to kitchens. 



[Sanitation] (Bien. Rpt. Bd. Health Minn., 1911-12, pp. 439-450, figs. 10). — 

 This section treats briefly with the disposal of dairy, residential, and school 

 sewage, and gives plans for sewage-disposal apparatus. Suggestions are also 

 presented for constructing an Imhoff tank and for converting a septic tank into 

 an Imhoff tank. 



Local venting of plumbing v. safety first, I. A. Mann (Dom. Engin., 68 

 (1914), A^o. 6, pp. 152-155, figs. 5). — The author discusses the subject from the 

 bacteriological standpoint and concludes that local vents in sanitary plumbing 

 systems are wasteful, expensive, unnecessary, and dangerous. 



The relation of methods of disposal of sewage to the spread of pellagra, 

 J.^ F. SiLER, P. E. Garrison, and W. J. MI^vcNeal (Proc. Soc. Expt. Biol, and 

 Med., 11 (1914), ^o- 3, pp. 94, 95). — In this summary of their work, the authors 

 state that, judging from their field studies, "pellagra has spread most readily 

 in communities in which unscreened surface privies were in use. ... In two 

 mill villages completely equipped with a water carriage sewer system, it was 

 impossible to find cases of pellagra which had certainly originated there. Indi- 

 viduals suffering from pellagra contracted elsewhere were not lacking in these 

 communities." 



RURAL ECOITOMICS. 



[Economic studies] (Wisconsin 8ta. Bui. 240 (1914), PP- 4~1S, figs. 7). — ^A 

 chart showing the distribution of the price paid by the consumer for Cheddar 

 cheese among producer and middleman (B. S. R., 29, p. 675) is presented and 

 discussed, together with data in regard to the marketing of potatoes. The two 

 main services which must be rendered in marketing potatoes are the storing of 

 the supply harvested in one month in order that there may be potatoes for the 

 remainder of the year, and distributing the surplus potatoes of the principal 

 potato districts to regions where fewer potatoes are produced than consumed. 

 The storing of potatoes is a function mainly performed by the producer. The 

 work of the local dealers is largely that of sorting and loading into cars. It 

 was found that generally there were too many warehouses at each shipping 

 station for their economic handling. However, many local dealers handle lum- 

 ber, feed, and machinery in addition to potatoes. 



The station is also making a detailed study of rural credit in Dane and Rusk 

 counties as illustrating the diversity of conditions existing in the State. It is 

 also investigating the methods employed by the local banks in meeting the 

 requirements of local rural credit. 



Among the conclusions drawn from other studies were that on two farms the 

 value of manure did not pay for the labor of feeding, milking, and caring for 

 the dairy herd, and that those farmers who had increased their investment in 



