FIELD CROPS. 635 



Fertilizing' field and garden, F. E. TI. W. KRicHArFF {Adelaide: Vardon ct- 

 Prltrhard, 1901, pp. 94, Jig><. 19). — A snininary of the results of scientific experiments 

 and practical experience in different parts of the world on the use of commercial fer- 

 tilizers for the production of the jirincipal field and <j;arden crops adapted to South 

 Australian conditions. 



Practical guide in the use of chemical fertilizers, Maizieres {Guide prati(jue 

 pou- Fonploi ilt's fiKjrai.f cJiintiqurs. I'oriH, 1901, 3. cd., pp. 185, ill.). 



The use of chemical fertilizers, P. Wagner {Amvendutu/ ki'oK^lUchcj- Di'ingemit- 

 (d. Berlin : Paul Fair;/, 1900, pp. XI1^163). 



Manures, T. S. Dymond and F. Hltghes {Notes on agricultural analyses. Chelms- 

 ford: County Technical Laboratories, Essex Technical Instruction Committee, 1901, pp. 11- 

 20). — Analyses of a number of samples of unmixed and mixed fertilizing materials 

 are reported. 



Commercial fertilizers, J. T. Anderson {Alabama College Sta. Bid. 11.5, pp. 148). 

 — This is a report of the results of analyses of commercial fertilizers and miscellane- 

 ous fertilizing materials collected and examined during the year ended July 1, 1901, 

 with an introduction on the selection and use of fertilizers; the State laws relating 

 to fertilizers; directions for sampling, etc. 



Fertilizer inspection, C. D. Woods and J. M. Bartlett {Maine Sta. Bid. 77, pp. 

 161-176). — This bulletin contains the analyses of samples collected by a representa- 

 tive of the station during 1901. A previous bulletin (E. S. R., 13, p. 236) gave the 

 results of analyses of samples furnished by the manufacturers. "A comparison of the 

 results of anabases of the samples collected by the station with the percentage guar- 

 anteed by the manufacturers shows that as a rule the fertilizers sold in the State are 

 well up to the guarantee. ' ' 



The inspection of fertilizers in 1900, F. W. Morse {Nexv Hampshire Sta. Bid. 

 80^ p. 8). — Analyses of 60 sam|)les collected by the secretary of the State board of 

 agriculture are reported. 



Use of fertilizers in South Australia, W. S. Summers {Jour. Agr. and Ind. 

 South Ausircdia, 4 {1901), No. 12, pp. 969-971). — The use of fertilizers in this region 

 practically dates from 1897. It is estimated that 26,400 tons of imported fertilizers 

 and 5,000 tons of fertilizers of local manufacture were used on the wheat crop in 1900. 

 Of this amount 25,500 tons was mineral superphosphate, 2,700 tons bone and guano 

 super])h()sphate, 1,600 tons Thonias phosphate, and 1,600 tons bone dust and other 

 fertilizers. Of the imported fertilizers Great Britain supplied about 21,500 tons, 

 Germany 2,500 tons, New South Wales 1,300 tons, and Victoria 500 tons. 



Mineral resources of the United States {Ann. Rpt. U. S. Geol. Survey, 21 

 {1899-1900), pi. 4, pp- 634)- — This contains, among other data relating to mineral 

 resources, statistics of production, consumption, etc., of phosphate rock, salt, and 

 gypsum. The total production of phosphates in the United States in 1899 was 

 1,515,702 tons, valued at ir!5,084,076. The statistics show that the phosphate deposits 

 of Pennsylvania were worked during the j'ear to the extent of 2,000 tons. 



FIELD CROPS. 



Plant breeding, W. M. Hays {U. S. Dept. Agr., Division of Vegeiahle Physiology 

 and Pathology Bid. 29, pp. 72, pis. 6, figs. 21). — This bulletin contains general obser- 

 vations on plant breeding, discussions on methods, and illustrations of work in this 

 line. The w-ork of plant breeding, as practiced by the author at the Minnesota Sta- 

 tion, forms the basis of the bulletin. As prominent examples of results of breeding, 

 the Wealthy apple, the Race Horse Messenger, and Minnesota No. 169 wheat are 

 pointed out. Some of the important jirinciples and facts to be observed in improving 

 plants are enumerated as follows: 



