558 EXPERIMENT STATION RECORD. 



New deposits of nitrate {L'Em/rals, 17 (WOJ), No. 4^;, pp. 109.5, 1096).— The 

 OGCiirrence of nitrate in Sonthern Algeria and in Death Valley, CaL, is briefly 



referred to. 



On injury by percMorate, B. S.iollema and A. Stutzer {Devi. Landn: Preside, 29 

 {I90J), A'o. 90, p. 7J.i).— The question of the priority of discovery of the injurious 

 effect of perehlorate on plants is discussed. 



Fertilizing- Hawaiian rice soils, J. T. Crawley {Havaaan Planters' Mo., 21 

 (1902'), No. 4, p]>. 179-182). — This article describes the present practice of using no 

 fertilizer or applying only shrimp meal, and discusses the fertilizer requirements of 

 rice as indicated by analyses of the rice plant and of a number of Hawaiian rice soils. 



Fertilizing in fall and winter [Mitt. Dent. Lnndw. GeRell, 17 {1902), No. 44, pp. 

 267, 2i':S).—k general discussion of the fall and winter application of lime and marl 

 and j)h<)sphatic and potassic fertilizers. 



Analyses of commercial fertilizers, ]\I. A. Scovell and H. E. Curtis {Kentncliy 

 Sl(i. J'yiil. 10?, pp. 167-228).— The results of inspection of fertilizers during the spring 

 of 1902, including analyses of 500 samples, are reported with brief explanatory notes. 

 " The results of the analyses show that of the 500 samples analyzed, 55, representing 

 49 brands and 23 firms, fell so far below the guaranteed analyses in phosphoric acid, 

 nitrogen, or potash, or any two, or all three of these ingredients, that the deficiencies 

 could not be accounted for by variations in sampling or analysis. It is probable that 

 in most cases variations can be accounted for by hurried or careless mixing at the 

 factories, or gross mistakes in shipping one Ijrand for another, but in one or two 

 instances the results show a desire on the part of the manufacturer to guarantee a 

 higlier i)ercentage of the essential ingredients than the goods contain. The great 

 majority of the manufacturers, however, have furnished in most instances fertilizers 

 fully u[) to guarantee." 



Analyses of commercial fertilizers, W. L. Hutchinson {Mississippi Sta. Bui. 77, 

 pp. 27) . — Analyses and valuations of 345 samples examined during 1902 are reported. 



Fertilizers (New Jersey Slas. Rpt. 1901, pp. 17-77). — A reprint f)f Bulletin 154 of 

 tlie station ( E. S. R., 13, p. 730) with addition of data regarding market prices of 

 fertilizers in New Jersej' during 1900 and pr(^;eding years, the text of the State fer- 

 tilizer law, and lists of inspectors and of manufacturers whose goods were inspected 

 during 1901. 



Report of analyses of commercial fertilizers for the spring' and fall of 

 1902, L. L. Van Slyke and W. H. Andrews {New York State Sta. Jiul. 216, pp. 

 103-167). — The results of analyses of 446 different brands of fertilizers are reported. 

 Of these, 309 were complete fertilizers in which the total nitrogen varied from 0.68 

 to 8.97 per cent, averaging 2.24 per cent; the water-soluble nitrogen from to 5.72 

 per cent, averaging 0.93 per cent; the available phosphoric acid from 1.72 to 12 per 

 cent, averaging 8.62 jier cent; the potash from 0.55 to 13.33 per cent, averaging 4.67 

 per cent. In 50 out of the 309 brands examined the potash was in the form of sulphate 

 free from excess of chlorids. The average amounts of nitrogen, available phosphoric^ 

 acid, and potash exceeded the guaranteed averages by 0.32 per cent, 0.91 per cent, 

 and 0.22 per cent, respectively. The average retail selling price of the fertilizers 

 was $26.14, the retail cost of the separate ingredients unmixed, $20.76. 



FIELD CROPS. 



Annual report of the Alaska Agricultural Experiment Stations for 1901, 



C. C. Georgeson ( V. S. Dept. Agr., Office of E.rperimad Stations Rpt. 1901, pp. 239- 

 359, ph. 77).— This report deals with experiments in growing cereals and vegetables 

 at the Alaska Experiment Stations and at nuuierous other points, together with the 

 progress made in the iuiprovement (jf the stations during 1901. In addition to this 

 matter the conditions and agricultural possibilities of the Yukon Valley, the region 



