II CONTEXTS. [Vol. 40 



Page. 



New method of determining methyl alcohol in mixtures, Toplis 310 



The reaction called " l'eclair bleu" and its application, JeanprCtre 311 



New methods for the analysis of butter, Erculisse and Packweller 311 



A rapid and accurate method for butter analysis, Kohman 311 



Report of committee on analysis of commercial fata and oils, Richardson. 312 



Quantitative determination of soluble starch, Small 312 



A method for the preparation of soluble starch. Small 312 



Improvement in volumetric determination of reducing sugars, Sidersky__ 312 



Determination of glucose with hypoiodid, Wlllst&tter and Schudel 



Influence of raffinose on determination of sugar beel molasses, Pellet 313 



The nonfermentable BUgars In sugar cane molass* a, Muller S13 



Utility of blanching in food canning. Effect of cold shock. Bruett 



Report of the agricultural chemist, Brunnlch 314 



METF.OROI.OGT. 



On the cooling of air near the ground at night, Hellmann 



The "warmth of dawn," MelSSner ."1 1 



Certain weather changes and radio-active emanations, Band] 814 



[Climatic conditions of the Belle Fourche reclamation project |, Anne 



British rainfall. 1917, Mill and Salter .".It 



Sulphuric acid contenl of snow and rain water, Suppers ."i I 



SOILS — FEUTII.I7.Kl: 



Soil factors affecting the toxicity Of alkali. Harris and Tinman. 315 



Determining salt content by freezing-point, Bouyoucos and McCool 



Est imaiioii of fertility of Bolls in Pulton County, End., Can and Gasl .__ 316 



Granitic and gneiss soils of the Corso 



Soil acidity ae ed by moistur editions of the soil, Conner 816 



Are unusual precautions necessary in soil samples? Lipman and Martin . 317 



The importance of mold action In the Boll, Waksman 



Nlftate reduction In cultivated soils, Oelsner 319 



Researches on certain "roll sicki therlands, Sblmgenetal 319 



[Report of soil fertility work in Kansas, 1917] 



Experiments with Rehmsdorfer nitrogen fertilizer, von Seelhor>t el ai 



a means of relieving the fertilizer crisis, de L'Ecluse 320 



Experiments with phosphate fertilizers in Minnesota, Alway 820 



[Phosphates in the Ukraine], Doelter 



A preliminary reporl on the potash industry of Nebraska. Condra 32 < 



The Alsace potash deposits and their significance in peace, Eestner 



Wood ashes as a Bource of potash, Guthrie 



Effect of liming on crop yields, Lipman and Pialr 82] 



Experiments with lime and marl. Chrisienseii 32] 



The injurious effect of borax in fertilizers on corn, Conner ."._"_' 



Crops thrive under Imhoff-tank sludge tests at Pallas. Seville 323 



AGRICULTUKM BOTANY. 



The effects <>f Inbreeding and crossbreeding upon development, Jones 



The relation of mutational characters to cell alze, Tupper and Bartlett :'.-'•'» 



The nature and significance of the chondrlome, Guilliermond 



Relation of the plant to the reaction of the nutrient solution. Boagland 324 

 Value of certain nutritive elements in development of oat plant, Dickson. 324 

 Direct assimilation of organic carbon by Ceratodon purpureus, Robbing— 



Degradation of iuulin and inullds in chicory root. Geslln and Wolff 325 



Sugar content of sorghum at various stages, Berthelot and Trannoy 



Development of sugars of sorghum, Berthelot and Trannoy 826 



Chemical changes accompanying abscission in CoU us blumei, Sampson 825 



Metachromatin and phenol compounds in the vegetable cell, Guilliermond- :'._'."> 



The salt content of a Kamerun plant, Lacroix 



The injurious effect of magnesium carbonate on plants, Coupin ,"._'<'. 



Influence of the vegetative function of yeast on alcoholic yield, Li; 



Measurements of growth in sm;ar cane. Kilian 



Photosynthesis, Crocker 826 



Behavior of plants in unventilatod chambers, Newcombo and Bowerman.. 



