624 EXPERIMENT STATION BECOED. 



Influence of fluorin on vegetation, A. Gax-tiek {Compt. Rend. Acad. Sci. 

 [Pcrw], 160 (1915), No. 6, pp. ID-i, 195; abs. in .Jour. Chein. Soc. [Londoii'i, 

 108 {1915), No. 629, I, p. 110; Internet. Imt. Agr. [Rome], Mo. Bui. Agr. Intel, 

 and Plant Diseases, 6 {1915), No. 4, pp. 564, 565; Chem. Abs., 9 {1915), No. 10, 

 pp. 1361, 1362). — A comparison of the behavior of various species of plants 

 when grown in an artificial soil almost completely deprived of fluorin, in the 

 same soil supplied with fluorin, and in an ordinary arable soil showed that in a 

 few cases the fluorin appeared to have an inhibitory effect but in most cases 

 it increased growth, flowering, and the production of seed. 



The manurial value of locusts, A. E. Collens {Bui. Dept. Agr. Trinidad and 

 Tobago, 14 {1915), No. 6, p. 199). — Analyses of Cedros and Venezuelan locusts 

 when fresh, air-dried, and dry show respective nitrogen contents of 3.34, 9.98, 

 and 11.3 per cent for the former, and 5.31, 10.99, and 12.18 per cent for the 

 latter. 



Meadow fertilization with sewage sludge, Ebebhabt {Deut. Landw. Presse, 

 42 {1915), No. 72, p. 623). — Field experiments on meadow land, varying from 

 light sandy loam to clay loam, to determine the fertilizing value of Emscher 

 tank sludge, a sludge resulting from a mechanical-chemical sewage purification 

 process (Eisenklarschlamm), and so-called " Baggergut sludge," are reported. 

 The sludges were added at rates of 100 kg. per 100 square meters (about 8.900 

 lbs. per acre) and 300 kg. per 100 square meters. 



Analyses of the sludges showed that, in the order named, they contained 

 total nitrogen 1.86, 2.06, and 1.21 per cent ; total phosphorus 1.2.5. 2.4.5. and 1.21 

 per cent ; lime 6.25, 6.52, and 5.17 per cent ; and total potash 0.25, 0.23, and 0.14 

 per cent. An increase in the hay crop due to the sludge was observed in all 

 cases, the "Baggergut sludge" giving the poorest results. The addition of 

 Thomas meal and kainit with the sludges had no marked effect. The highest 

 yield was obtained with the addition of 300 kg. of Emscher sludge per 100 

 square meters. 



Peat litter and peat litter works, V. Zaileb {Torfstreu und Torfstreuwerke. 

 Hannover: M. and H. Schaper, 1915, pp. yiII+320, figs. i60).— This book 

 presents the results of the author's experience and studies in numerous peat 

 litter works of those European countries having extensive areas of peat moors. 

 An introductory section gives a brief statement of tlie development of the peat 

 litter industry. The first main section describes the different kinds of peat, and 

 discusses the physical and chemical properties and uses of peat dust and litter 

 and the properties and uses of peat fertilizers. The second section deals with 

 the organization, management, and financing of peat litter industries and the 

 profits realized therefrom. 



A. list of European firms interested in the peat industry is appended. 



Analyses of inspection samples of fertilizers, .7. T. Willard and R. C. 

 Wiley {Kansas Sta. Insp. Cin: I {1915), pp. 7). — This circular contains the 

 results of actual and guarantied analyses of 88 .samples of fertilizers and fer- 

 tilizing materials offered for sale in Kansas during the spring months of 1915. 

 In general the results indicate conformity to the law. 



Inspection of commercial fertilizers, H. D. Haskins, L, S. Walker, C. V. 

 Jones, and W. S. Fko.st {Massachttsetts Sta. Control Ser. Bui. 4 {1915), pp. 

 100). — This bulletin contains a list of dealers who registered fertilizers and 

 lime compounds for sale in Massachusetts during 1915. and reports and dis- 

 cusses the results of actual and guarantied analyses and valuations of 721 

 samples of fertilizers and fertilizing materials and lime compounds collected in 

 the State during 1915. 



Special attention is called to commercial shortages existing in both unniixod 

 fertilizing materials and mixed goods. Particular emphasis is laid uix)n tlie 



