FIELD CROPS. 737 



tons, valued at $1,001,556. Mining Ijegan in Florida in 1889, and in 1890, 45,501 

 long tons, valued at $338,190, were produced. The discovery of phosphate rock in 

 Tennessee was made in 1893, but actual mining did not begin until the following 

 year, when 19,188 long tons were produced." 



Report on the phosphate deposits of Egypt ( Geological Survei/ of Eynpt. 

 Cairo: National Printing De^d., 1900, pp. 27, maps S). — Descriptions, with analyses, 

 are given of phosphate deposits in 3 localities, namely, in the peninsula of Sinai, 

 lower Egypt, and Dakhla Oasis. The deposits are said to be very extensive. 

 The analyses reported show that the proportion of tricalcium phosphate varies from 

 12.9-1 to 60.97 per cent. The phosphates are not suited to the manufacture of super- 

 phosphates. 



On the application of lime upon a sour soil before and after seeding to 

 grass, H. J. Wreeler and J. A. Tillixghast {BJtodi- Island Sta. Rpt. 1S99, jip. 

 171-173). — A brief account is given of plat experiments at the station during 1898 

 and 1899, which "illustrates in the most striking manner that in seeding sour (acid) 

 land to timothy, lime should be thoroughly worked into the soil before the seed is 

 gown. A top-dres»ing of lime applied subsequently to seeding, while it may prove 

 somewhat helpful, exerts but little benefit in connection with timothy as compared 

 with lime harrowed into the soil." 



Analyses of commercial fertilizers, H. J. Wheeler, B. L. Hart^ell, et al. 

 {Rhode Island Sta. Bid. 70, pp. 11). — Analyses and valuations of 55 sam]iles of ferti- 

 lizers are reported. 



Fertilizer inspection, C. D. Woods and J. M. Bartlett {Maine Sta. Bui. 66, pp. 

 117-132). — A previous Imlletin (E. S. R., 12, p. 324) reported analyses of most of the 

 samples of fertilizers furnished by manufacturers as required by the State law. The 

 present bulletin contains analyses of 157 samples of fertilizers collected on the open 

 market by agents of the station and also of manufacturers' samples received after the 

 previous bulletin was issued. Attention is called to the fact that 70 brands of ferti- 

 lizers offered for sale in the State ' ' carried, in the case of at least one of the ingredients, 

 a different statement on the bag from the certified statement filed with the station. 

 ... In about one-third of the cases the figures on the packages are but slightly 

 lower than the certified guarantees. ... A comparison of the results of the analyses 

 of the samples collected by the station with the percentages guaranteed by the man- 

 ufacturers shows that many of the manufacturers do not intend to do much more 

 than make good the minimum guarantee, and it is not surprising that this results in 

 some of the goods falling lielow the guarantee in one or more ingredients." 



The collective exhibit of German fertilizers and chemical products, Mai- 

 zieres {U Engrais, 13 {1900), No. 39, pp. 924-926). — This article contains, among other 

 data, statistics of the consumption of Stassfurt potash salts in different countries. 



FIELD CROPS. 



On the relation of climate to the size of grain of cereals, 



J. L. Jensen (r/f7.s-.yAT. Landhr. Planteavl,5 {1899), x>P- 138-U7).—T\xq 

 author secured 731 samples of barley, oats, rye, and wheat through 

 Danish consulates in foreign countries for the purpose of studying 

 questions relating to grain rusts and their prevention. All but 26 of 

 the samples came from 12 different countries in Europe and America 

 and, in addition, 83 samples were obtained from Danish farmers. The 

 average weight of 10,000 kernels was determined for each cereal from 

 each country. The data were then averaged for the -1 cereals men- 



