190 EXPERIMENT STATION KECOED. 



Science in the service of highway construction, C. Richardson (Pop. Sci. 

 Mo., 80 {1912), No. J), pp. 326-337, fig. i).— The author outlines the development 

 of modern methods of highway construction and shows how science has aided 

 therein. 



Good roads, E. J. Watson (Ann. Rpt. Comr. Agr., Com. and Indus. S. C, 

 8 (1911), pp. 121-121, pis. 2, fig. 1). — This report deals with the development of 

 road construction, maintenance, and administration in South Carolina, and 

 gives tabulated data on the total mileage of public roads in the State, the 

 methods of construction and improvement, and the expenditures in money and 

 labor. 



Proceeding's of the second annual convention of the Inter-Mountain Good 

 Eoads Association, Pocatello, Idaho, June 22-24, 1911 (Proc. Inter-Moun- 

 tain Good Roads Assoc, 2 (1911), pp. 64). — These proceedings contain* discus- 

 sions of road construction, maintenance, and administration in general, and 

 reports of road work done in the different States belonging to this association. 



Report of the State Highway Commission of Minnesota, 1909-10 (Rpt. 

 Eighway Com. Minn., 1900-10, pp. 31, figs. 11). — This report presents general 

 investigations of road conditions, building material, and construction and main- 

 tenance methods, and includes the state engineer's report on the roads of the 

 State. 



French experiments with tarred roads, W. H. Hunt (Daily Cons, and 

 Trade Rpts. [V. S.], 15 (1912), No. 103, p. 430 ) .—Attention is called to the 

 extent of tarred roads in France, the essentials of good construc;tion, and the 

 results of experiments with the dust from tarred roads, divers tar and oil 

 emulsions, and deliquescent salts used in road surfac 



Highway bridges and culverts, C. H. Hoyt and W. H. Burr (TJ. S. Dept. 

 Agr., Offiee Pith. Roads Bui. JfS, pp. 21, pis. l.'i, figs. 3). — This is a revision of - 

 Bulletin 39, previously noted (E. S. R., 25, p. 891), and has for its purpose the 

 pointing out of some of the important fundamental principles that govern 

 operations necessary to secure properly designed highway bridges and culverts, 

 together with some facts relating to their construction. A systematic course 

 of procedure in bridge and culvert work is outlined and discussed, as consist- 

 ing of the following steps : Securing the services of a capable bridge engineer, 

 testing the foundation to determine its suitability, bearing power, and economy, 

 determining the location and making the profile, determining the proper loading, 

 and the making of accurate and economic designs and plans and cost estimates. 



Flans showing details of structures are also given. 



Culvert practice in road building in connection with drainage ditching 

 in Minnesota (Engin. and Contract., 31 (1912), No. 11, pp. Jfie, .'til, fig. h). — 

 Specifications are given for corrugated metal culverts which are put into roads 

 made by using the spoil banks from drainage ditches. 



A plan for a small dairy house, E. Kelly and K. E. Parks (TJ. 8. Dept. 

 Agr., Bur. Anim. Indus. Circ. 195, pp. 5, figs. -J). — This contains plans and de- 

 tails for constructing an inexpensive but sanitary dairy house. 



The ventilation of stock stables, F. Ulrichs (Ilhis. Landw. Ztg., 32 (1912), 

 No. 21, pp. 251, 258). — The construction of cow stalls relative to ventilation is 

 discussed, the principal method of ventilation dealt with being that by vapor 

 chimneys. 



The development of agricultural machinery in Germany, G. Fischer et al. 

 (Arb. Deut. Landw. GeselL, 1910, No. Ill, pp. TIII+Ji36, figs. 325).— This 

 publication deals with the general development of agricultural machinery in 

 Germany, describing and discussing ground-breaking implements, seeders, and 

 cultivators, harvesters, cleaning and sorting machines, feed-preparing machines. 



