428 EXPERIMENT STATEON RECORD. 



Assimilation of reverted phesplioric acid by plants, V. P. Kochetkov {Izv. 

 MosTcov. Selsk. Khoz. Inst. {Ann. Inst. Agron. Moscou), 19 (1913), No. 1, pp. 

 205-222, figs. 9; Iz RezuVt. Veget. Opytov Lah. Rabot, 8 (1911-12 [puh. 1913]), 

 pp. 205-222, figs. 7). — The results of sand cultures witli various phosphates 

 untreated, leached with water, and digested with ammonium citrate were 

 variable and inconclusive. 



The German potash salts, Lebebke (Pfianzer, 9 (1913), No. 11, pp. 533-542, 

 pis, 8). — This article discusses the character and extent of the German potash 

 deposits, method of exploitation, manufacture, and use, including statistics of 

 home and German colonial consumption and foreign export. 



Comparative fertilizer tests of common salt and potash salt, P. Bolin 

 (Meddel. Centralanst. Forsoksv. Jordhruksomradct, 1913, No. 82, pp. 16; ahs. in 

 ZentU. Agr. Chem., 42 (1913), No. 10, pp. 670-673; Jour. Soc. Cliem. Indus., 

 32 (1913), No. 23, p. 1122).— The results of 19 series of comparative tests m 

 different parts of Sweden of equal amounts of sodium chlorid and 37 per cent 

 potash salt applied to oats, hay, kohl-rabi, sugar beets, and fodder beets are 

 reported. 



On hay and on oats on moor soils the sodium chlorid was but little less 

 effective in increasing the yield than the potash salt. With kohl-rabi and beets 

 428 lbs. per acre of salt produced a greater and more profitable increase in 

 yield than 178 lbs. of potash salt. The results are attributed more to the chlorin 

 or general effect of the salts than to the supply of either potash or soda. 



Fertilizers, R. E. Rose and L. Heimbuegeb (Fla. Quart. Bui. Agr. Dept., 23 

 (1913), No. 3, pp. 187-199, 204-209). — An account is given of the fertilizer 

 inspection during 1913, including analyses of fertilizers examined, with notes 

 on laws and regulations and valuation of fertilizers. 



Report of analyses of commercial fertilizers (Louisiana Stas. Fert. Rpt. 

 1912-13, pp. 102). — Analyses of 9,230 samples of fertilizers and fertilizing 

 materials inspected during the season of 1912-13 are reported. 



Fertilizer analyses, A. J. Patten, W. C. Makti, A. K. Haet, and O. F. 

 Jensen (Michigan Sta. Bui. 272, pp. 5-55).— This is a report of the usual kind, 

 giving results of analyses and valuations of fertilizers inspected in Michigan 

 in 1913. The text of the State fertilizer law as amended in 1913 is also given. 



The amended law defines the term " commercial fertilizer," including specifi- 

 cally limestone or lime rock. It also more clearly prescribes the form and 

 contents of the certificate of analysis, etc., to be filed with the secretary of 

 state and attached to the bags or packages of fertilizers. 



Analyses of commercial fertilizers, B. L. Hart well et al. (Rhode Island 

 Sta. Insp. Buls., 1911, Sept., pp. 11; Oct., pp. 8).— Analyses and valuations of 

 fertilizers inspected during the latter part of 1911 are reported. 



Commercial fertilizers in 1912-13, G. S. Fraps (Texas Sta. Bui. 160, pp. 

 5-33, figs. 2). — Analyses and valuations of fertilizers inspected during the 

 season of 1912-13 are reported, with collateral information regarding fertilizers 

 and fertilizer inspection, and a list of registered brands is given. The con- 

 sumption of fertilizers in the State during the period covered by the inspection 

 is estimated to have been 75,500 tons. 



AGRICULTTJRAL BOTANY. 



Applied botany for the colonies, M. Dubabd (Botanique Coloniale Appliqu^e. 

 Paris, 1913, pp. VI-\-347, figs. 146). — In this book the author has departed from 

 the usual arrangement of the material, and instead of describing plants accord- 

 ing to their systematic sequence he has grouped them with reference to their 



