202 EXPERIMENT STATION RECORD. 



The cost of manuring in systems of farming Tvith and vrithout 

 stock, K. MlLLEil {LaiKlw. Jahrh., 2S {I'^HJ-J), jS'o. 2 and 3, pp. 107- 

 332). — This is an elaborate report, presenting detailed statistics of the 

 comparative cost, under European conditions, of manuring in systems 

 of farming in which (1) a large amount of stock, (2) a small amount of 

 stock, and (3) no stock is kept, the co;nparative merits of commercial 

 fertilizers, green manuring, night soil, sewage, etc., being discussed. 



The author concludes that green manuring, supplemented by com- 

 mercial fertilizers, is suited to almost all conditions. Under favorable 

 soil conditions manuring with artificial fertilizers may be exclusively 

 practiced. The economy of the use of night soil, sewage, sweepings, 

 factory waste, composts, etc., and bought stable manure depends upon 

 local conditions, and these materials should be used only Avhen they 

 are cheaper than the more generally applicable system of green manur- 

 ing supplemented by commercial fertilizers. 



Although it is believed that in some cases the circumstances may 

 warrant the reduction or total abandonment of stock-raising, and the 

 substitution of some of the aboye systems of manuring, it is not safe 

 to conclude that such is generally advisable. In deciding this ques- 

 tion there are other important factors besides cost of manure to be 

 taken into consideration. 



Analyses of commercial fertilizers, M. A. Scoveli. {Kentucky Sta. Bpf. 1S90, pp. 

 122-lM).—k reprint of r.ii]]etin 29 of the station (E. S. R., 2, p. 227). 



Analyses of fertilizers at Massachusetts State Station {Massachusetts State Sta. 

 Bui. 53, pj). ;?-.S'). — A schedule of trade values and tabulated analyses of 91 samples 

 of fertilizing materials, including factory-mixed goods, dissolved boueblack, nitrate 

 of soda, tankage, ground hone, wood ashes, cotton-hull ashes, lime-kiln ashes, slaked 

 lime, wool waste, muck, goose manure, hen-house refuse, and soot. 



Cooperative experiments Avith fertilizers on corn, M. A. .Scoaell {Kentucky 

 Sta. Bpt. tSDO, pp. 79-100).— Rcin-inU-d from IJulletiu 26 of the station (E. S. R., 2, p. 

 143). 



The permanency of effect of potash fertilizers, M. A. .Scovell {Kentucky Sta. 

 Bpt. 1S90, pp. /(-vi-ZW).— Reprinted from Bulletin 2(3 of the station (E. S. R., 2, p. 143). 



Practical guide for manuring, H. Favet {Paris: Larouac, 1894, 2d ed.,'pp. 200). 



Artificial fertilizers in the Puisaye, Potier {Ann. Agron., 20 {1894), No. 6, pp. 

 263-291). — Comparisons of different artiticial fertilizers on wheat, forage plants, 

 sugar beets, and potatoes. 



The fertilizer industry of the United States {UEn(iro\x, 9 {1894), No. 33, p. 783).— 

 Statistics showing number of fertilizer estalilishments in the different States and 

 Territories of this country, capital invested, amount and wages of labor employed, 

 amount and A'alue of fertilizers produced, etc., taken from American Fertilizer. 



The nitrogen question, H. Edson {Suyar, 6 {1894), p. 128). — The author reports 

 finding 17.3 lbs. of nitrogen per acre in SteUaria media which Imd grown during the 

 winter in cane fields. This is about one half the amount of nitrogen in the fertil- 

 izers employed each year, and was saved from Vieiug Avashed away by permitting 

 the ground to be covered witli the weed. He advises the growth of such weeds and 

 turning them under in the spring to prevent loss of nitrogen by wasliing from the 

 soil during the winter. 



Recent researches on the fixation of atmospheric nitrogen by microorgan- 

 isms, BEnTiiEi.OT {Bui. Soe. Chim. Paris, 11-11 {1894), No. 1-',, pp. 781-784).— fiee E. 

 S. R., 4, p. 502. 



