218 EXPERIMENT STATION RECORD. 



2,330,152 long tons, valuocl at $10,772,120, as compared witli 2,380.138 long tons, 

 valued at $11,399,12-1, in 1908. There was an increase in production in Florida 

 but decreases in Soutli Carolina and especially in Tennessee. "Arkansas, 

 Idaho, Utah, and Wyoming were the only other States to produce phosphate 

 rock in 1909. The total production from these States was 9,493 tons in 1909, 

 as compared with 13,111 tons in 1908, a loss of 3,018 tons." 



The gypsum industry in 1909, E. F. Burchaku (U. S. Geol. Survey, Advance 

 Chapter from Mineral Resoitrees of the United Slates, Calendar Year 1909, pp. 

 //). — It is stated that 2,252,785 short tons of gypsum was mined in the United 

 States in 1909, representing an increase of nearly 31 per cent over the produc- 

 tion of 1908. Of this amount 49,581 tons was sold for use as land plaster, rep- 

 resenting a decided increase in such use over that of the previous year. Gyp- 

 sum was produced in 10 States and 2 Territories besides Alaska during 1909, 

 the lai-gest production being reported from New York, Michigan, and Iowa. 



The rocks and waters of the Roman Campagna with respect to lime, G. de 

 Angelis d'Ossat {Atti R. Accad. Lincei Rend. CI. Sci. Fis., Mat. e iShtt., 5. ser., 

 20 {1911), I, No. Ji, pp. 259-266). — This is an account of a study of the lime con- 

 tent of the rocks and waters of this region with reference to the rate of solu- 

 bility of the calcium carbonate of the rocks in water under varying conditions. 

 Molasses as a fertilizer, G. N. Martin {Internat. Sugar Jour., 13 (1911), 

 No. lift, pp. 153-155). — The author refers to experiments by himself and by 

 Boname (E. S. R., 21, p. 724), indicating marlved and profitable benefit from 

 applications of from 400 to 600 gallons of molasses per acre in the furrows 

 from 1 to 2 weeks before planting cane. 



On the composition and fertilizing value of peat ash, H. von Feilitzen 

 (Mitt. Liv-Estldnd. Bur. LandeskuJt., Jahrh. 1909-10, pp. SJ-^^).— Analyses 

 are reported which show variations in lime from 5.79 to 21.04 per cent, with an 

 average of 13.26 per cent; in potash from 0.52 to 2.21 per cent, with an average 

 of 1.16 per cent; and in phosphoric acid from 1.73 to 2.7 per cent, with an 

 average of 2.3 per cent. The average of water-soluble potash was 0.25 per 

 cent and of citric-acid-soluble phosphoric acid 0.96 per cent. It is stated that 

 pot experiments, which, however, have not yet been completed, indicate that 

 the potash and phosphoric acid of peat ashes do not have as great fertilizing 

 value as the same constituents in Stassfurt salts and superphosphate. 



[Fertilizing materials], F. V. Darbishire and W. Goodwin (Jour. South- 

 east. Agr. Col. Wye, 1909, No. 18, pp. 201-207).— Analyses of potassium phos- 

 phate, tortoise-shell dust and shavings, ammonium sulphate, bone manures, 

 fish guano, shoddy, and sewage sludge are reported, with brief comments upon 

 their fertilizing value. 



Analysis of fertilizers sold in Maryland, H. B. McDonnell et al. (Md. 

 Agr. Col. Quart., 19U, No. 51, pp. 31). — This bulletin reports analyses and 

 valuations of fertilizers examined during September to December, 1910, in- 

 clusive. 



Inspection of commercial fertilizers, P. F. Trowbridge et al. (Missouri Sta. 

 BuL 91, pp.- 39I-J1J18). — This report, made in accordance with the Missouri 

 fertilizer law, covers the year ended December 31, 1910, and contains the text 

 of the law, a statement regarding the purchase of fertilizers, a list of fertilizer 

 manufacturers and brands offered for sale by them, a comparison of the valua- 

 tion of fertilizers of the same guarantied composition, analyses of the fertili- 

 zers inspected, and a financial statement. 



Analyses of fertilizers, B. W. Kilgore et al. (Bui. N. C. Dept. Agr., 32 

 (1911), No. 1, pp. 81). — Analyses and valuations of fertilizers collected in 

 North Carolina during the fall season of 1910 are reported, and a list of brands 

 registered for the season of 1910-11 is given. 



