SOILS — FERTILIZERS. 1051 



A new nitrogenous manure, J. Hendrick I Trans. Highland and Agr. Soc. Scot., ■',. 

 8t /•., 18 i 7906), j'/'. 75 71 1 .—Field experiments on oatB and barley \\ ith lime nitrogen 

 ascompared with nitrate of soda and Bulphate of ammonia are briefly reported. The 

 results show that the lime nitrogen was bul slightly inferior to nitrate of soda or sul- 

 phate of ammonia. -- In no case did any injury appear to be caused to the germina- 

 tion of oats or barley by using the cyanamid at the rate of I cwt. per acre along with 

 the seed." 



The conversion of atmospheric nitrogen into nitric acid, L. ( ii:wi>i:\i | Jour. 

 Agr. Prat, n. ser., 1 1 I 1906), No.8, pp. 288 /.::, ,. This article briefly reviews investi- 

 gations on this subject and describes the various methods which have been pro- 

 posed for fixing the nitrogen of the air. particularly that of Birkeland and Eyde. 



Chemistry and the world's food, R. K. In \« w | Harper's Mo. Mag., 11.' I 1906), 

 X<>. r,; i , /,/,. 7 20-781 ).- A popular review of progress in investigations relating t<> the 

 utilization of the nitrogen <>f the air for industrial purposes, especially as a fertilizer. 



Nitrogen requirements of crops, L. Grandeau {Jour. Agr. Prat.,n.ser., in 1906), 

 No. 7, pp. .'<n-.'o.:). — The demands of crops on the nitrogen of the air and the soil are 

 briefly discussed. 



It is estimated that the crops produced . »i i the 24,000,000 hectares 9,716,575 acre- i 

 of land under cultivation iu France remove about L'7:;,ui)0 metric tons more of nitro- 

 gen, 149,000 tons more of phosphoric acid, and :'-77, i tons more of potash thanis 



returned to the soil by farm manures. The most economical means of makingup 

 this deficit are discussed. 



Fertilizers, E. Hasblhoff (Jahresber. Agr. Chem., 8. ser., 7 {1904), pp- 100-229). — 

 A review is given of the literature relating to this subject published during L904, 

 classified as follows: Analyses of fertilizers and preservation of manure, results and 

 methods of fertilizer control, and fertilizer experiments. 



Commercial fertilizers, <i. Roberts {California Sta. BuL 171, pp. 29, figs. 8). — 

 The results of fertilizer inspection during the year ended June 30, L905,are reported, 

 including analyses of 151 samples of fertilizers and notes on valuation, mechanical 

 condition of fertilizers, etc., and the text of the fertilizer law . 



Commercial fertilizers, <i. Roberts {California sin. Bul. /;..', pp. 26). — This bul- 

 letin gives the results of fertilizer inspection during the six months ended 1 December 

 31, 1905, including analyses of 138 samples of fertilizers and a list of brands of fertil- 

 izers ami fertilizing materials offered for sale by the registered manufacturers and 

 dealers in the State. 



Fertilizer inspection, C. I >. Woods and .1. M. Bartlett ( Maine Sta. Bul. 1J7, 

 ]'/'■ 47-64). — This bulletin contains the analyses of manufacturers' samples of brands 

 of fertilizers licensed before February, H<0n, with explanations regarding constituents 

 of fertilizers and valuation. 



Commercial fertilizers, .1. L. Hills and C. H. Jones ( Vermont Sta. Bul. 1 .' 1 , pp. 

 81-104). — This is the first bulletin issued in connection with the fertilizer inspection 

 for L906 and gives results of analyses of 56 brands. A table is also included showing 

 the composition of ll'ti brands on sale in the State .luring the past 5 years. The 

 character ami contents of the more important previous bulletins of the station on 

 fertilizers are explained and notes are given on valuation. 



Commercial fertilizers, .1. II. Si i.w \i:r and B. II. Hite | West Virginia Sta. Bul. 97, 

 1>I>. ('III-CVI I 10S-170). — This is the complete report of the work of fertilizer 

 inspection in West Virginia during 1905, including analyses of 238 samples. 



Commercial fertilizers, M. B. McDowell I Ann. Rpt. Penn. I>-j>i. Agr., 1<> I 1904), 

 />j>. 185-155). — This IS a general discussion of the sources, nature, and uses of the 

 various commercial supplies of nitrogen, phosphoric acid, and potash. 



Artificial fertilizers, their functions and use, F. K. Lre {Jour. I>'j>t. Agr. 

 Victoria, 3 {190-5), No. in, />/>. 718-7t5,fig. li.— This article summarizes information 



:v.\: at—So. 11—06 3 



