CONTKNTS. Ill 



Page. 



Drill mauuriug in Hungary, Gyarfas 726 



The loss of ammonia from manured soils, Ehrenberg 726 



The production of ammonia from peat, Caro 726 



Manuring experiments with peat, Dreiman 727 



Hygroscopicity of certain new nitrogenous fertilizers, von Feilitzen and Lugner . 727 



Some fertilizer experiments with different potash minerals, von Feilitzen 727 



A new mineral yielding potassium sulphate 727 



The German potash industry, Albert 727 



Potash residues as manure, Sapartovitch 727 



The best method of applying lime to arable land, Wright 728 



Relative economy of ground and slaked limes, Wright 728 



Lime for agricultural purposes. Patten and Jeffery 728 



Experiments with sodium chlorid for sugar beets, Strohmer and Fallada 728 



The influence of molasses on soil fertility 728 



The agricultural utilization of certain waste products, Griffet 729 



Commercial fertilizers, Scovell and CJurtis 729 



Fertilizer inspection 729 



AGRICULTURAL BOTANY. 



Studies on fruit respiration, Gore 729 



On the respiration of different floral organs, Maige 729 



The influence of air currents on transpiration. Brown 730 



The action of the osmotic pressure of the nutrient media on plants, Beauverie. . 730 



Amyloclastic secretory capacities of embryo and aleurone layer, Stoward 730 



Penetration of salts into protoplasm and their toxic action, De Rufz de Lavison. 730 



On the mineral nutrition of vascular plants, De Rufz de Lavison 731 



The role of manganese in plant nutrition, Leidreiter 731 



A theory regarding the manganese soils and pineapples, James 731 



The phosphorus assimilation of Aspergillis niger, Dox 731 



On the histological relations between Cuscuta and its host, Thoday (Sykes) 731 



The influence of low temperatures on the giant cactus, Shreve 732 



Climatic selection in a hybrid progeny, MacDougal 732 



FIELD CROPS. 



[Field crops at the Kabeti Exj^eriment Farm, 1909-10], Johnston 733 



Annual report of Lyallpur Agricultural Station, 1909-10, Milligan and Milne... 733 



Experimental work at Longerenong Agricultural College, Pridham 733 



Emergency forage crops, Brodie 733 



Forage crops for the sand-hill section of Nebraska, Vinall .• 733 



Results of cooperative demonstration work in New Mexico, Tinsley 733 



Leguminous crops for Hawaii, Kjauss 734 



Grass cultm-e, Hutcheson 734 



Grasses, Ten Eyck 735 



Winter cereals without irrigation, Mundy 736 



The protein content of barley kernels, Sperling 736 



Inheritance in maize, East and Hayes 736 



Improvement in corn, Hayes and East 737 



Experiments in potato grooving, Henshaw 738 



Standard and undesii'able commercial types of potatoes. Mil ward 738 



Growing pedigreed sugar-beet seed in South Dakota, 1910, Shepard 738 



How to grow wheat in Kansas, Jardine and Call 739 



Progress of wheat investigations, Willis and Burlison 739 



Garden and field seeds sold in Connecticut in 1910-11, Jagger and Jenkins 739 



The application of the frequency polygon in plant breeding, Zaleski 740 



HORTICULTURE. 



Report of the horticulturist, Kinman 740 



Frames as a factor in truck growing, Beattie 741 



Fruit bud formation: Investigations in 1908, 1909, and 1910, Pickett 741 



Variability of frost injury on fruit buds. Homer 742 



Preliminary frost fighting studies in the Rogue River Valley, Lewis and BroMm. 742 



Orchard heating, Thiessen 743 



Protection against frost — frost candles, McAdie 743 



Winter vetch for a cover crop in Michigan orchards, Eustace 743 



Strawberry culture in Idaho, Vincent 743 



