CONTENTS. Ill 



The importance of lime as a plant food, Brehmer 927 



The use of manganese as a fertilizer, Lal)ergi'rie 927 



Culture tests of manganese sulphate, de Miilinari and Ligot 928 



On the exploitation of guano, .\higallanes 928 



Information regarding ('hineha and Ballesta and neighboring islands, ("oker. . . 928 



Results and prospects in the nitrate inthistry 928 



Loss of nitric nitrogen from certain complex fertilizers, Astruc 928 



Norwegian nitrogen mamifacture, Peirce and Bordewich 928 



Process for manufacture of fertilizer from nitrogen of air. Roth 928 



Synthetic nitrogenous compounds, McMurtrie ^ 929 



On the synthesis of nitrous anhydrid 929 



The new nitrogenous fertilizer, calcium cyanamid, Crudo 929 



New fertilizers prepared from atmospheric nitrogen, E. and G. Pollaci 929 



Treatment of calcium cyanamid with suljjhuric acid, E. and G. Pollaci • 929 



Development of the cyanamid industry in Europe 929 



The agricultural importance of the potash deposits of Germany, Kuhn 929 



The world's consumption of potash, Maiziferes 929 



World's production of phosphate and superphosphate to end of 1906, Maiziferes. 929 



Phosphates and superphosphates, CoUot 929 



Fertilizers in Russia 030 



Fertilizing materials, Shutt 930 



AfiRICULTURAL BOTANY. 



The light requirements of plants, AViesner 930 



The production of chlorophyll in different light intensities, Lubimenko 930 



The influence of light and moisture on the composition of plants, Murinoff . . . . 930 



Relative transpiration in cacti, Livingston 931 



The relation of injury to fasciation in the evening primroses, Knox 931 



A study of the car])ohydrate metabolism in the sugar beet, Strakosch 931 



The proteases of plants, IV, V, Vines 931 



The presence of peroxidase in dry seeds, Brocq-Ronsseu and Gain 931 



Morphogenetic action of organic sul)stances on the higher plants, Molliard 932 



Recent investigations on role of hydrocyanic acid in gi-een plants, II, Treub . . 932 



On the protective influence assigned to hydrocyanic acid in plants, Treub .... 933 



The role of potash in the plant organism, Vageler 933 



On nutrient and balanced solutions, Osterhout 933 



Culture of micro-organisms, Kiister 933 



On the importance of pure cultures, Richter 933 



FIELn CROPS. 



Sandy soils and the growing of forage crops, Voorhees and Lipnian 934 



Influence of leguminous crops upon the yield of cereals, Bytchikhine 934 



Permanent pastures: Their importance, estalilishment, and management, Falke. 935 



The composition of the herbage of pastures and meadows, Armstrong 935 



Field experiments with farm crops, Saunders et al 935 



Results obtained in 1907 from trial plats, W. and C. E. Saunders 939 



Fertilizer tests with wheat and corn, Snyder 939 



The seeding, growing, and curins; nf alfalfa, Moore 940 



Type and varial^ility in corn, Davenport and Rietz 940 



Studies of Egyptian cotton. Balls 940 



Cotton futures and their influence on the cotton industry, Heizmann 940 



Irish potato fertilizer experiments, Hotchkiss and Kyle 941 



Rice, Nelstm .^ 941 



Comparative tests < f ])iitalo( s, Lemee 941 



Cooperative experiments with winter spelt, Fruwirth 941 



Tobacco grf)wing in tlie Pliilipi)ines, Nesom 941 



Influentuj of fertilizers upon the composition and (piality of wheat, Snyder . . . 941 



Adulteration and misbranding of alfalfa, clover, and grass .seeds, Galloway .... 942 



References to recent work in plant breeding, Fruwirth 943 



HORTICULTURE. 



Horticultural work at the Canada experiment staticms, Macoun et al 943 



Report upon the botanical and agricultural department for 1906, Evans 944 



