546 EXPERIMENT STATION RECORD. 



ground water supply by means of artificial infiltration through cleansable basins is 

 described. 



Small fluctuations in mass of underground water, .1. Boussinesq (Compt. 

 Rend. Acad. Sci. Paris, 139 I 1904), No. 8, pp. 441-445; Her. Sci. [Paris], 5. ser., 2 1 1904), 

 No. 10, p. 307). 



Underground streams and their utilization, L. Dancer (Deut. Landw. Presse, 

 31 {1904), No. 81, pp. 689-691). — A brief general discussion. 



The Burt continuous water-softening process {Engineer. News, 52 (1904), 

 No. 11, p. 238, jigs. .'). — This system of treatment first with lime and then with soda is 

 described. 



The use of copper sulphate to prevent algal growths at Hanover, N. H. , 

 R. Fletcher {Engineer. News, 52 {1904), No. 17, p. 375). — A successful trial of the 

 method at the city water works is reported. 



Report of the committee appointed to consider the standardization of 

 methods for the bacterioscopic examination of water, R. Boyce et ai.. ( Chem. 

 News, 90 {1904), No. 2341, pp. 177-179). — This is the report of a committee appointed 

 at the Congress of the Royal Institute of Public Health, held at the University of 

 Liverpool in July, 1903, "to consider the methods employed in the bacterioscopic 

 analysis of water, and, if possible, to draw up a scheme of uniform procedure for 

 adoption in such examination, and to report to the next congress of the Institute." 



The committee names as the minimal number of procedures "(1) enumeration of 

 the bacteria present on a medium incubated at room temperature (18 to 22° ('. ); (2) 

 search for Bacillus colt, and identification and enumeration of this organism if pres- 

 ent." While the committee regard these procedures as an irreducible minimum in 

 the bacterioscopic analysis of water, the majority of the committee recommend in 

 addition "(1) enumeration of the bacteria present on a medium incubated at blood 

 heat (36 to 38° C. ); (2) search for and enumeration of streptococci. The committee 

 do not think it necessary as a routine measure to search for the Bacillus enteritidis 

 sporogenes, but are agreed that in special or exceptional instances it may be advisable 

 to look for this organism." 



The report deals with methods of collection of sample; choice, preparation, and 

 reaction of the media to be used; amounts to be plated, sizes of dishes, etc.; tem- 

 perature of incubation; detection, isolation, identification, and characteristics of 

 Bacillus coli; identification of streptococci and Bacillus enteritidis sporogenes. 



Recent experiments and new problems in soil bacteriology, with especial 

 reference to green manuring and fallows, L. Hiltnek i Arb. Deut. Landw. (resell., 

 1904, No. 98, pp. 59-78). — A review and general discussion. 



Investigations in soil management, being three of six papers on the in- 

 fluence of soil management upon the water-soluble salts in soils and the 

 yield of crops, F. H. King {Madison, Wis.: Published by author, with permission of 

 Secretary of Agriculture, 1904, pp. VIII + 168, figs. 21). — The three papers contained 

 in this pamphlet are entitled, respectively, ( E) Influence of farmyard manure 

 upon yield and upon the water-soluble salts of soils, (F) The movement of water- 

 soluble salts in soils, and (D) Absorption of water-soluble salts by different soil 

 types. The other three papers of the series are: (B) Amounts of plant food readily 

 recoverable from field soils by distilled water, (C) Relations of crop yields to 

 amounts of water-soluble plant-food materials recovered from soils, and (G) Rela- 

 tions of differences of yield on eight soil types to difference of climatological environ- 

 ment. "The six papers constitute the report of the Chief of the Division of Soil 

 Management [Bureau of Soils] for 1902 and 1903." 



E — Influence of farmyard manure "/«<» yield and upon, the water-soluble salts of soils 

 (pp. 1-61). — This paper gives the results of experiments with multiple proportions 

 (5, 10, and 15 tons per acre) of barnyard manure and with guano (300 lbs. per acre I 

 on 2-acre plats of 8 type soils located at Goldsboro. N. C. (Norfolk sandy loam and 



