II CONTENTS. [Vol. 40 



Page. 



Conditions essential for manufacture of carvaerol, Hixson and McKee 310 



The fermentation organisms of California grapes. Cruess 110 



A method of dialysis of enzynis, Val'tera 111 



The quantitative analysis of small quantities of gases, Ryder 111 



Notes on Folin's direct nesslerization method for nitrogen, Langstroth 111 



Microchemical nitrogen determination. Sjollema and Hetterschy 111 



Sources of error incident to Lindo-Gladding method, Keitt and Shiver 112 



Determination of phosphorus by nephelometric method, Meigs 112 



Determination of alkaline carbonates and bicarbonates, Mestrezat 112 



The determination of carbon dioxid in carbonate, Van Slyke 113 



Volumetric determination of sulphates, Vansteenberghe and Bauzil 113 



The determination of tyrosin in proteins, Johns and Jones 113 



optical dispersion of oils from analytical viewpoint, Fryer and Weston 113 



The autooxid.it ion of sugars, Berczeller and Szego 113 



Volumetric determination of reducing sugars. Clark 114 



Determination of aldehyde sugars by lodin, Colin and Lievin 114 



A method for the determination of starch, Long 114 



The determination of pentosans, Steenbergen , 114 



A study of*Bome biochemical color tests. I, Fearon 114 



The measurement of the acidity of bread, Cohn et al 115 



Determination of pectins in spices, von Fellenberg 113 



The photographic examination of fresh and preserved eggs, Le Roy 115 



Determination ( >f caffein in coffee. Vautier 115 



The testing of palm butter with some hints for manufacture, van Heurn 115 



New tables for finding purity of massecuite, Claiborne 116 



A source of error in the use of picric acid, Rohde and Sweeney 1 16 



A method for the estimation of potassium in blood, Clausen 116 



Homemade beverages and vinegars, Arnold 116 



Utilization of defective or arid eiders, perries, and lees, Truelle 116 



Preservation and ripening of forage in silo in warm ciimates, Giglioli lid 



Potato drying, Peglion 116 



METEOROLOGY. 



Climate and types of farming 116 



Monthly Weather Review 117 



Climatological data for the United States by sections 117 



Meteorological observations at Wisley, 1916, Curtis 117 



Night-temperature studies in the Roswell fruit district, Hallenbeck 117 



Hourly frequency of precipitation in central Ohio, Martin 117 



Frequency of subnormal rainfall in August 118 



Problems of denudation, Jeffreys 118 



Hail protection, Courty IIS 



SOILS — FERTILIZERS 



Reconnolssance soil survey of Lower San Joaquin Valley, Nelson et al lis 



Soil survo.v of I'.arry County, Mo., Sweet and Knobel mi 



Soil survey of Miami County, Ohio, Allen and Gossard 110 



Soil survey of Berkeley County, S. C. Latimer et al no 



Soil survey of Bell County, Tex.. Carter, jr., Lewis, and Hawker 120 



Soil survey of .Milwaukee County. Wis., Geih and Dunuewald V2U 



Soil survey of D ■ County, AYis.. Ceib et al 120 



Chemical criteria, production, and classification in two soils, Burd 120 



The relative •'rawness" of some humid subsoils. Harmer l_'l 



The Influence of plant residues on nitrogen fixation, Hutchinson 121 



Production Of COa by molds In sterile SOil, Potter and Snyder 122 



[nversion Of sugar by soils and nature of soil acidity. Rice and Osugl vj;: 



The chemical effects of CaO and CaCO. on the soil, I. II r_M 



Neutralization of sour soils 125 



[Work in soil chemistry and bacteriology at New Jersey Stations. 1917]__ 125 



What is the bulk of manure produced by consumption of hay? Vbelcker. 126 



The triangle system for fertilizer experiments, Schreiner and skinner 128 



Manurial values of dairy feeds, Grady. 126 



[Fertilizers required for food production in Norway] 127 



Fertilizers in South Africa | 127 





