516 EXPERIMENT STATION BECORD. 



Notes on the testing of coal-tar creosote, J. C Mann {Jour. Soc. Chem. 

 Indus., 29 (1910), No. 12, vp- 732-734, figs. 2). — A discussion and description of 

 methods for examining coal-tar creosote for impregnating wood, etc. 



Dressing- and curing meat for farm use, W. H. Tomhave and D. A. Gaum- 

 NiTZ (Univ. Minn., Dept. Agr., Ext. Bui. 11, 1910, pp. 20, figs. 13). — This bulletin 

 contains detailed information, with illustrations, in regard to the slaughtering 

 and dressing of hogs, beeves, sheep, and veal on the farm. It also deals with 

 the smoking and curing of meats, the preparation of lard and sausages, and the 

 formation of beef clubs. 



Influence of low temperatures on the ripening process of fruits and the 

 fermentation of cider, H. C. Goke (Abs. in Osterr. Chem. Ztg., 13 {1910), No. 

 21, p. 261). — The results of the work show that the chemical changes wrought 

 by cold do not alter the character of the must but only diminish the intensity 

 of the fermentation. The process goes on in a slower but normal manner. 

 With fruits it was determined that a decided decrease in the carbon dioxid 

 output takes place. 



The manufacture of marmalades, E. Waltee {Pure Products, 7 {1911), No. 

 1, pp. 11-16, figs. 3). — A general discussion of the subject, which considers the 

 principles of manufacture, the yield, and the machinery employed. 



The constituents of the wax of candelilla or Mexican wax plant, G. S. 

 FRAPS and J. B. Rather {Ahs. in Science, n. ser., 32 {1910), No. 823, p. 478).— 

 The authors isolated a hydrocarbon from this substance which had a melting 

 point of 68° C It was only partly soluble in cold ether or chloroform, but 

 soluble in hot chloroform and difficultly soluble in cold or hot alcohol. The 

 hydrocarbon is probably hentriocontane (CsiHw), which has also been isolated 

 from beeswax. Two other unidentified bodies were also found. 



See also the work of Hare and Bjerregaard (E. S. R, 23, p. 615). 



The trials of hop-drying plants, 1909, W. R. Elgak, J. Powell, and L. 

 Briant {Jour. Roy. Agr. Soc. England, 70 {1909), pp. 196-207, figs. 3).— The 

 results are given of a prize contest for the best hop-drying apparatus offered 

 by the Royal Agricultural Society of England. Cuts illustrating the plan of 

 various forms of apparatus entered are shown. 



Mechanical sampler, C. Wolters {Chem. Ztg., 34 {1910), No. 65, p. 579, fig. 

 1). — A description and illustration of a mechanical sampler for obtaining aver- 

 age samples of salt, minerals, coal, etc. 



Report of the activities of the agricultural-chemical control station at 

 Halle for 1909, H. C. Mijller {Ber. Agr. Chem. EontroUstat. Halle, 1909, pp. 

 58). — The report contains the results of the chemical examination of soils, feed- 

 ing stuffs, water, sewage, fertilizers, foods, dairy products, and miscellaneous 

 substances, and of the microscopical examination of seeds, foods, feeding stuffs, 

 water, and miscellaneous substances. A report on the activities of the cultural, 

 the technical, and the various research divisions is also included. 



Extracts from the proceedings of the Association of Oflicial Agricultural 

 Chemists, 1910 {U. S. Dept. Agr., Bur. Chem,. Circ. 66, pp. 27).— This is a 

 preliminary report of the proceedings, previously noted (E. S. R., 24, p. 196), of 

 the Association of Official Agricultural Chemists for 1910, and contains the rec- 

 ommendations made by the referees and associate referees for nitrogen, potash, 

 soils, inorganic plant constituents, insecticides, waters, foods and feeding stuffs, 

 dairy products, tannin, medicinal plants and drugs, sugars, spices, separation of 

 vegetable and meat proteids, fats and oils, organic and inorganic phosphorus, 

 coffee, tea, cocoa and cocoa products, water determination in foods, baking 

 powders, preservatives, reference tables, cereal products, flavoring extracts, de- 



