CONTENTS. ni 



Page. 



Oxidation of nitrogen by silent discharges, Warburg and Leitliiiuser 423 



On tlie formation of calcium cyanamid and calcium carbid, lludolfi 423 



The formation of lime nitrogen, Foerster and Jacoby 423 



Contributions to the study of calcium phosphates, Bassett, jr 423 



Phosphates in relation to the sulphur industry, Tirelli 423 



Fertilizers, Stutzer i 423 



The u^e of chemical fertilizers, Minangoin 423 



Itcsults of field experiments with fei'tilizers in Belgium, Schreiber 423 



Relative efficiency of nitrate of soda and sulphate of ammonia, Suchting 423 



Exiieriments with ammonium sulphate, Bachmann 424 



Field experiments with niti;ogen-lime for sugar beets, 8trohmer 424 



Comparative fertilizer experiments with lime nitrogen, Schmoeger 424 



Experiments with lime nitrogen and nitrogen lime, Inunendorff 424 



The question of sulphate of iron, GufCroy 425 



The composition and fertilizing value of I'osen sewage, (ierlach 425 



Kxpcrinients on the fertilizing action of olive pomace ashes. Vigiani 425 



The action of the lime waste of sugar factories as a fertilizer, Rupprecht 425 



Fertilizer analyses, I'atten 425 



Licensed commercial fertilizers, 1907, Woll and Olson 425 



AGRICULTURAL BOTANY. 



'I'hc Mssimilation of atmospheric nitrogen by fungi, Ternetz 425 



The role of lime in plants, Grafe and von I'ortheim 426 



Plants containing hydrocyanic acid, Guerin 426 



The latent life of seeds, Becquerel • 426 



Respiration and dry substance of flowers during development, ^Nlaige 427 



Heredity and Mendel's "law, Davenport 427 



Mendelisni and other methods of descent. Cook i 427 



International catalogue of scientific literature. R — Bacteriology 427 



FIELD CROPS. 



The breeding of agricultural jilants, Fruwirth 427 



(":niipl)t']rs soil culture manual, Campbell 428 



Proceedings of the trans-lNlissouri dry farming congress 428 



Report of work at McNeill branch experiment station for 1006, Ferris 428 



Pieport of Hawaii Experiment Station for 1906 [Field crops], Smith 429 



I Report on field crops], True . 429 



Results of cooperative experiments in agriculture, Buchanan 430 



[Xotes on alfalfa and sugar beets], Blinn 431 



Alfalfa, Ilolden 431 



Nitrogen content of barley in relation to structure of the meal, Jalinvetz 431 



Physiological effects of excess of magnesia on barley, Kumakiri 431 



Indian corn. Ten Eyck and Shoesmith 432 



Protein in seed corn. Penny 4.33 



The value of cotton improvement 433 



TiUpines as an intercultural cro]) with potatoes, Hiltner 433 



Rlct' culture, Boonacker and Drost 434 



The continuous application of manganous chlorid in rice culture, IT, Aso__ 434 



The growth of sugar beet in the midlands, Golding and Hutchinson 434 



Tiio ]trogress in the Ijeet-sugar industry 1906, Fallada 434 



Sugar-cane exiieriments in the Leeward Islands, Watts et al 434 



Winter wheat varieties, Barron 434 



The effect of shade during ripening on the proximate constituents of the 



wheat kernel, Thatcher and Watkins . 435 



Dodder in relation to farm seeds. Hillman 435 



HORTICULTURK. 



Fruits and vegetables, Ferris 435 



Report of the horticulturist, Close 437 



Summary of investigations [Horticultural crops), Smitli 437 



Report of the horticulturist, Higgins 438 



Cantaloupes, Blinn 438 



