CONTENTS. Ill 



Accumulation of nitrofron, carbon, and humus in a prairio noil, Alway and Vail . . 1114 



Soil acidity in its relation to lack of available |)hosi)hal('s, Stoddart 1114 



The problem of our unproductive lands, Cherry 1114 



Effect of various mulching materials on the productiveness of soils, Clausen. . . 1 115 



Fixation of free nitrogen, nitrification, etc., Koch 1115 



Assimilation of free nitrogen by Azotobacter and Radiobacter, Stoklasa et al. . 1115 



Nitrogen and nitragin, Ewart 1110 



The inoculation of leguminous crops, Chittenden I IKj 



Experiments on the value of nitro-bacterine, Gimingham llKj 



Experiments on the value of nitro-bacterine, Keeble 1116 



Experiments on the value of nitro-bacterine, Chittenden 1117 



Nitro-bacterine, Ilenslow 1117 



Experiments with nitro-bacterine, Bottomley 1117 



Investigations on lime nitrogen and nitrogen lime, Sabaschnikoff 1117 



The chemical changes in lime nitrogen when used as a fertilizer, Kappen 1117 



The decomposition of lime nitrogen, III, Lohnis and Moll 1117 



Is dicyandiamid a poison for field crops? Loew 1118 



An observation on calcium cyanamid, Aeby 1 11<S 



The assimilation of potash by plants, Kriiger 1118 



Phonolith, so-called potash silicate, as a fertilizer, Wagner 1118 



On the fertilizing value of the phosphoric acid of vivianite, Bottcher 1119 



The phosphorites of Gafsa, Tebessa, and Cape Leuca, Rossi 1119 



Namban Creek phosphatic deposits, Mann et al 1119 



Phosphatic and gypsum deposits, Despeissis 1119 



The present status of the nitrate industry of Chile, Gerlach 1119 



The Chilean nitrate fields '. 1119 



Analyses of fertilizers. Rose 1119 



Commercial fertilizers, Calvert 1120 



AGRICULTURAL BOTANY. 



Linnseus's lectures on the cultivation of plants, Swederus 1 120 



The weeds and suspected poisonous plants of Queensland, Bailey 1120 



Triple hybrids, De Vries 1120 



The chemistry of plants, Andre 1120 



The biochemistry of animals and plants, Rosenheim 1 120 



Some problems and resultsof a study of the mechanics of plant anatomy, Kiister. 1121 



Effects of variations in the inorganic salts upon nutrition, Moore et al 1121 



Inorganic nutrients in bean seedlings, II, Von Portheira and Samec 1121 



The phosphorus nutrition of plants. Cavalier and Artus 1122 



Phosphorus and the formation of amino acids by the higher plants, Scurti 1 122 



The decomposition of sugar during the processes of respiration, Jensen 1 122 



On the ''strength '' and development of the grain of wheat, Brenchley 1 122 



The presence of amylase in old seeds, Brocq-Rousseu and Gain 1 1 23 



The presence of oxydases in india rubber, Spence 1 123 



Relation of plant growth and vegetation forms to climatic conditions, Thornber. 1 123 



Plant culture in diffused daylight, Bergurstein 1 124 



The influence of light on the development of fruits and seeds, Lubimenko .... 1124 



The influence of radium rays on a few life processes of plants, Gager 1 124 



Electroculture, Martin 1124 



The beginning of the development of perennial and annual plants, Andre 1125 



The perennation of the clover dodder ( ruscuta epithymum) , Stewart and French . 1 1 25 



On the parasitism of Siphouostegia, Kusano 1 1 2(5 



Studies on ^ginctia indica, Kusano 1 126 



FIELD CROPS. 



Report on the agricultural and botanical departments, Barbados, Morris 1 126 



Nitrogen fertilizer experiments on me^ulows, Bachmann 1 127 



Mainirial experiments on gra.ss land, 190K, Percival 1 127 



Rotation ex|)eriment, Greig 1 127 



The utilization of straw, (Jregoire 1128 



Southern crops, edited by Hunnicutt 1 128 



Cotton i)roduction in Egypt, Roux 1128 



International Cotton Congress, Paris, 1908 1128 



Variety teats by German station for jxitato culture, \'on Eckenbrecher 1128 



