1044 EXPERIMENT STATION RECORD. 



Analyses of commercial fertilizers, M. A. Scovelt, A. M. Peter, and H. E. 

 Curtis (Kentucky Sta. Bpt. 1896, pp. 83-96, 99-108) .—A reprint of Bulletins ti4 and 

 65 of the station (E. S. R., 8, pp. 300, 970). 



Analyses of commercial fertilizers, II. W. Kilgore et at (Alississippi Sta. Spec. 

 Bids. 42, pp. 15; 45, pp. IS). — These bulletins include statements regarding the fer- 

 tilizer control in Mississippi, explanations of terms used in reporting analyses of 

 fertilizers, notes on valuation of fertilizers, lists of brands licensed for sale in the 

 State with guaranteed analyses, and tabulated analyses and valuations of 93 samples 

 of fertilizing materials collected during the latter part of December, 1897, and 

 January, 1898. 



Analyses of commercial fertilizers, W. C. Stubbs {Louisiana Stas. Bui. 49,:?. scr., 

 pp. 163-198). — This bulletin gives the text of the State fertilizer law, discusses the 

 nature and sources of the A r arious fertilizing materials supplying nitrogen, phos- 

 phoric acid, and potash in fertilizers, and the valuation of fertilizers, gives a list of 

 guaranteed analyses of fertilizers licensed for sale during the seasons of 1896 and 

 1897, and reports analyses of 171 samples of fertilizing materials, including ammoui- 

 ated superphosphates and guanos, acid phosphates, cotton-seed meal, tankage, 

 nitrate of soda, dried blood, bone, cotton-hull ashes, polassiurn sulphate, kaiuit, and 

 "natural plant food. 7 ' 



Analyses of the last-named material "show beyond doubt that it is a natural phos- 

 phate, finely ground, mixed, perhaps with a small quantity of kainit." 



The agricultural value of phosphatic slag, L. Grandeau (Ann. Sci. Agron., 1897, 

 II, Xo. 3, pp. 432-444). — A general discussion of this subject, devoted largely to the 

 work of Wagner, Maercker, Meissl, and Petermann and Graftiau, but including also 

 results of experiments by the author on beans, potatoes, and maize, which lead to 

 the conclusion that there is no relation between the solubility of a |)hosphate in acid 

 citrate solution and its assimilation by plants. The author, therefore, recommends 

 that slag be bought on guaranty of total phosphoric acid and fine meal. 



American phosphates ( L'Engrais, 13 (1898), Xo. S, pp. ISO, 181). — A statement of 

 shipments from different American ports in 1897. 



On the Russian phosphate deposits, R. Gripexbekg {Biet, 19 (1898), Xo. l,pp. 

 10-1. '). 



The deposits of phosphate of lime in Algeria, L. Grandeau (Ann. Sci. Agron., 

 1897, II, Xo. 2, pp. 213-260). 



On the action of phosphoric acid in field experiments with Thomas slag and 

 ground bone, E. Meissl and Reitmair (Ztsclir. Landw. Fersuchsw. Oesterr., 1 (1S9S), 

 Xo.l, pp. 78-88). 



Artificial fertilizers. II. Juiilix-1>axxfelt (K. Landt. Akad. Handl. Tidskr., 36 

 (1S97), Xo. 4, pp. 203- 



A bill governing the sale of fertilizers, feeding stuffs, and seeds ( Tidskr. Landt- 

 man, is \ 1891 >, No. 3s, pp. f,79-6S4). — The text of a bill introduced in the Swedish 

 Parliament, with discussions of the same. 



FIELD CROPS. 



Second report on potato culture, I. P. Eoberts and L. A. 



Clinton (New York Cornell Xt«. Bid. 110, pp. 385-390, Jig. 1). — This 

 work is ill continuation of experiments made in 1895 and 1896 

 (E. S. E., 9, p. 343). The results for the tbreo years are given in tables. 

 The soil upon which the experiments were made contained about 

 one-half the total amount of plant food carried by an average soil and 

 in consequence the authors ascribe the satisfactory results obtained to 

 the culture and treatment of the crop. The land was plowed April 2 



