306 EXPERIMENT STATION RECORD. 



briefly the stones now in use or which can easily he obtained in Nevada, with their 

 location anil availability. 



Historic highways of America, A. B. IIulbert {Cleveland, Ohio: Arthur If. 

 Clark Co., 1904, vol. 12, pp. W2, maps 3). — This volume deals with the pioneer roads 

 and the experiences of travelers. For notice of previous volumes of this series see 

 E. S. R., 15, pp. 415, 1135. 



On the durability of American swing - plows, E. Jorgensen ( Tidsskr. Landokon., 

 1904, No. 2, pp. 137-145). 



Trials with preservatives for plows, E. Jorgensen (Tidsskr. Landokon., 1904, 

 No. 6, pp. 311-313). — A mixture of 1 part chalk and 2 parts tallow, applied hot, was 

 found effective as a preservative for the iron parts of plows. — f. w. woll. 



Trials with Korsgard's potato harvester, E. Jorgensen (Tidsskr. Landokon., 

 1904, No. 0, pp. 307 ■-.? 10). 



Trials with reapers and mowers, E. Jorgensen (Tidsskr. Landokon., 1904, No. 

 2, pp. 146-158). 



Trials of agricultural machinery in Denmark during 1903, E. Jorgensen 

 (Tidsskr. Landokon., 1904, No. 2, pp. 117-136). 



Agricultural motors, ('<. Coupan (Les moteurs agricoles. Paris: J. B. Bail-Hire 

 & Sons, 1904, pp. 484, figs. 269; rev. in Jour. Ayr. Prat.,n. ser., 7 (1904), No. 16, pp. 

 524, 525; Tier. Se.i. [Paris], 5. ser., 2 (1904), 'No. 7, pp. 49-51). — This treatise forms one 

 volume of Encyclopedic agricole, published under the direction of G. YVery. The 

 detailed account of the various agricultural motors which are grouped in four 

 classes — animal motors, vapor motors, explosion motors, and miscellaneous (wind, 

 water, and electric), is preceded by a discussion of general mechanical principles. 



Round cotton bales, D. A. Willey (Amer. Inventor, 12 (1904), No. 9, pp. 198, 

 199, figs. 5). 



MISCELLANEOUS. 



Seventeenth Annual Report of Maryland Station, 1904 (Maryland Sta. Ppt. 

 1904, pp. XVI+104). — This contains a brief outline of the work of the station during 

 the year by the director; the organization list, a financial statement for the fiscal 

 year ended June 30, 1904, and reprints of station bulletins 90-92, on the following 

 subjects: Experiments on the control of the San Jose scale (E. S. R., 15, p. 978), 

 experiments with nitrogenous fertilizers (E. S. R., 16, p. 138), and notes on apple 

 culture (E. S. R., 16, p. 156). 



Eleventh Annual Report of Minnesota Station, 1903 (Minnesota Sta. Ppt. 



1903, pp. 280). — This includes the organization list of the station; a report of the 

 director containing a financial statement for the fiscal year ended June 30, 1903, and 

 a review of the different lines of station work; and reprints of Bulletins 77-82 of the 

 station on the following subjects: Insects notably injurious in 1902 (E. S. R., 14, p. 

 779); experiments in sheep husbandry (E. S. R., 14, p. 994); investigation in milk 

 production (E. S. R., 14, p. 1003); alfalfa, its chemical development, feeding value 

 and digestibility, and the digestibility of hog millet (E. S. R., 14, pp. 958, 992, 993); 

 review of the work of the Northeast Experiment Farm since its organization in May, 

 1896 (E. S. R., 15, pp. 233, 236, 252, 260, 290); and hemorrhagic septicemia (E. S. R., 

 15, p. 514). 



Abstracts showing the acreage under crops, and the number of live stock 

 in each county and province for 1903-4 (Dept. Agr. and TrcJi. Instr. Ireland, 



1904, pp. 19). — In this pamphlet statistics are presented in tabular form, on the total 

 acreage of various crops in Ireland indicating also the amount of decrease or increase 

 over former years. Lists are also given showing the numbers of various kinds of 

 live stock. 



