34 EXPEKIMENT STATION RECORD. 



oxalate only in solutions containing 0.5 to 1 gm. per liter. The nitrous organism 

 appeared to have an incubation period of 6 days, the nitric organism of only 2 days. 



Ammonium salts hindered the multiplication of nitric organisms, but did not in- 

 terfere with the action of those already present. The minimum retarding amount of 

 ammonia was found to be about 2 parts per million. It is thought that the amount 

 of ammonia in soils under ordinary conditions is too small to interfere with the 

 multiplication of nitric organisms. 



Analyses of fertilizing substances sent on for free examination, C. A. Goess- 

 mann (Massachusetts Sta. Bui. 95, pp. 18).— Analyses are reported of miscellaneous 

 materials, including wood ashes, cotton-hull ashes, limekiln ashes, sulphate of ammo- 

 nia, nitrate of soda, cotton-seed meal, muriate of potash, high gradesulphate of potash, 

 acid phosphate, dissolved boneblack, phosphatic slag, Belgian phosphate, tankage, 

 steamed bone, ground bone, dry ground fish, mill refuse, wool dust, cotton-seed 

 droppings, cotton-seed dust, cocoa shells, lime refuse, waste lime, dried dandelion 

 root, compound fertilizers, peat, muck, meadow mud, silt deposit, and soils. Notes 

 are also given on the valuation of fertilizers, and on taking samples for analysis. 



Commercial fertilizers, P. Schweitzer (Missouri Sta. Bui. 63, pp. 22). — A report 

 on the registration and inspection of fertilizers in Missouri during the year ended 

 December 31, 1903, including the text of the State fertilizer law approved March 14, 

 1903, the details of analyses, and advice to farmers regarding the purchase and use of 

 fertilizers. 



Inspection of fertilizers in 1903, F. W. Morse (New Hampshire Sta. Bui. 108, 

 pp. 63-71). — This bulletin contains a brief statement regarding fertilizer inspection 

 during 1903 in cooperation with the State Board of Agriculture, and reports analyses 

 of wood ashes and miscellaneous fertilizing materials. The text of the State ferti- 

 lizer law and a schedule of trade values of fertilizing constituents for 1903 are given. 



Miscellaneous analyses, B. L. Hartwell, A. W. Bosworth, and J. W. Kellogg 

 (Rltode Island Sta. Rpt. 1903, pp. 233-236). — Analyses of dried blood, ammonium sul- 

 phate, nitrate of soda, tankage, wool waste, horn meal, hoof meal, acid fish, star fish, 

 dissolved bone, dissolved boneblack, double superphosphate, acid phosphate, raw 

 aluminum phosphate, muriate of potash, sulphate of potash, air-slaked lime, dried 

 distillers' grains, timothy hay, Buffalo horse feed, Buffalo poultry feed, Buffalo 

 creamery feed, mixed feed, cotton-seed meal, and precipitate from sewage tanks. 



Commercial fertilizers ( Wisconsin Sta. Rpt. 1903, pp. 307-313).— This is a brief 

 summary of the work of the station on commercial fertilizers during the period from 

 1896-to 1903. The following articles are included: 



Fertilizer experiments, by F. W. Woll (pp. 307-309). — Fertilizer Experiments with 

 Indian Corn on Marsh Soils (E. S. R., 10, p. 729); Fertilizer Experiments with 

 Sugar Beets on Marsh Soils (E. S. R., 12, p. 46). 



Analyses and general discussions of fertilizers, by F. W. Woll (pp. 309-313). — The 

 Maintenance of Soil Fertility: Commercial Fertilizers (E. S. R., 8, p. 212; 9, p. 543); 

 Fertilizing Value of Lake Mud (E. S. R., 9, p. 543); Fertilizers for Lawns (E. S. R., 

 11, p. 528). 



A list of articles on fertilizer inspection is also given, with a brief history of fertili- 

 zer inspection in the State and analyses of fertilizers inspected during 1903. 



Fertilizers licensed for sale in "Wisconsin in 1904, F. W. Woll and G. A. 

 Olson ( Wisconsin Sta. Bid. 113, pp. 3-13, 18, 19). — This is a repoit of the results of 

 analyses of 18 samples of fertilizers licensed during 1904, with notes on the sources, 

 nature, purchase, valuation, and use of fertilizers, and the text of the State law. 



FIELD CROPS. 



Cooperative experiments in agriculture, C. A. Zavitz (Ontario Agr. and Expt. 

 Union Rpt. 1903, pp. 10-29, map 1). — A discussion of the organization of the work is 

 presented, and the results for 1903 and in some cases the average results for a series 



