Angewandte Botanik. 463 



Lipman, J. G., Observations on soil inoculation. (Soc. 

 Prom. Agr. Sei. Proc. XXXIII. p. 69-75. 1913.) 



Among other observations the author finds that white clover 

 will grow on land too acid for alfalfa. The varieties of bacteria in- 

 fecting clover will develop in a medium too acid for the develop- 

 ment of the varieties infecting alfalfa. W. H. Emig (St. Louis). 



Lumsden, D., Fertilizers for carnations. (N. H. Agr. 

 Exp, Sta. Bul. CLIX. p. 1-14. 1912.) 



The author considers the effect of nitrate of soda, muriate of 

 potash, ground bone, Cla3^'s fertilizer, and hen manure on carna- 

 tions. When taking into consideration the vigor of the plants and 

 the keeping quality of their flowers, ground bone was found to 

 give the best results, its value being especially pronounced in cau- 

 sing the production of flowers having superior keeping qualities. 

 Plants treated with an excess of hen manure or nitrate of soda 

 produced flowers having poor keeping qualities. 



J. S. Cooley (St. Louis). 



Neger, F. W., Der Stand derAnbauversuche mit 

 fremdländischen Holzarten in den Staatswal- 

 dungen des Königreichs Sachsen. (Naturw. Zeitschr.. 

 Forst- u. Landw. XII. p. 1—11. 1914.) 



Die im einzelnen angeführten Anbauversuche werden von Verf. 

 in ihren Ergebnissen etwa folgendermassen zusammengefasst: Gut 

 bewährt: Pseudotsuga Douglasii, grüne Var. sächsische Schweiz und 

 Niederwald, aber nicht in Südlagen; graue Var. im unteren Erzge- 

 birge, der sächsischen Schweiz. Pinus stvobus MaherzW. Querctis rubra 

 im Niederwald, sächsische Schweiz, unteres Erzgebirge. Populus 

 canadensis Auengebiete des Niederlandes. Bedingungsweise zu 

 empfehlen: Chaniaecyparis lawsotiiana sächsische Schweiz. Larix 

 leptolepis nur auf gutem Standort. Prunus serotina als Bodenschutz- 

 holz. Zu streichen sind: ^özes- Arten, Picea sitchensis, Engelmanni, 

 pungens, Pinus Banksiana, ponderosa, Caryä alba, Fraxinus aineri- 

 cana, Juglans nigra höchstens in Auewäldern im Niederland. 



Rippel (Augustenberg). 



Sackett, W. G., The nitrifying efficiency of certain 

 Colorado soils. (Colo. Agr. Coli. Bul. CXCIII. p. 1—43. 1914.) 



This paper reports the results of experiments on the nitrifying 

 efficiency of normal Colorado soils and soils in the first stage of 

 the "niter trouble". A comparison is also made with the nitrying 

 efficiency of soil samples collected in other parts of the United 

 States. Ammoniacal nitrogen was supplied either in the form of 

 ammonium sulphate, ammonium carbonate, or ammonium Chloride. 

 Practically three fourths of the soils examined possessed this ni- 

 trying power in varying degrees, the largest amount of nitrate 

 produced by one soil being 972 p.p.m. from ammonium sulphate. 

 428 p.p.m. from ammonium Chloride, 1148 p.p.m. from ammonium 

 carbonate, and 820 p.p.m. from dried blood. These amounts were 

 far superior to those obtained from the soil samples from other 

 states. In the case of the Colorado soils the majority nitrified 



