II CONTENTS. 



Page. 



The detection of organic poisons (toxins and the like) in food, Barger 207 



The quantitative estimation of gliadin in flour and gluten, Olson 208 



Detection of chicory in decoctions of chicory and coffee, LaWall and Formaii . . 208 



The detection of cane sugar in honey, LaWall 208 



Estimation of fat of milk with trichlorethylene, Ross van Lennep and Ruys. . 209 



The properties of watered milk. Long and May 209 



Examination of the sediment obtained in the leucocyte test, Brudny 209 



Is the reductase test valuable for controlling the milk supply? Hoyberg 209 



The fluidity of butter fat and its substitutes, White and Twining '. 209 



The detection of gelatin in sour cream, Seidenberg 210 



Sampling ice cream, Halverson 210 



The modified Babcock for fat in ice cream, Halverson 210 



A rapid method for the determination of fat in ice cream, Lichtenberg 211 



A micro-chemical method for amino acids and derivatives, Kober and Sugiura. . 211 



METEOROLOGY — WATER. 



Report of the Chief of the Weather Bureau, 1913 212 



Monthly Weather Review 212 



Monthly Weather Review 213 



Clima tological data for the United States by sections 213 



Meteorological observations at Massachusetts Station, Ostrander and Dexter. . . 213 



Peculiarities of the California climate, McEwen 2l3 



The floods of 1913 in the Ohio and lower Mississippi valleys, Henry 214 



The weather of the past agricultural year, Brodie 214 



The effect of climate and weather on the soil, Russell 214 



Water conservation. McCuUoh 214 



SOILS — FERTILIZERS. 



The natm'al scientific basis for agricultural technique, Feige 215 



Testing soils in the laboratory and field, Stevenson and Brown 215 



Composition and agricultural value of the arable lands in Argentina, Lavenir. . 215 



Alkali lands, Sharp 215 



[Nitrogen supply of the Indian soil], Hutchinson 215 



The lateral percolation of contamination in soil, Bail and Breinl 216 



The effect of hydroxyl ions on clay and clay soils in marling, Maschhaupt 216 



Studies of plant growth in heated soil, Wilson 216 



Determination of fertiUzer needs of soils by chemical analysis, Lemmermann. . 217 



Determination of fertilizer needs of soils by chemical analysis, Mitscherlich . . 217 



Estimating the fertilizer need of soil, Mitscherlich 217 



Behavior of common and improved plants toward fertilization. Mass 217 



Maintenance of soil fertility: Plans and summary tables 217 



Soil fertility, Roberts 217 



Pot culture experiments, 1913, Voelcker 218 



Manurial experiments 218 



The mixing of fertilizers, Diem 218 



Topographic features of the desert basins with reference to potash, Free 218 



Presumed luxury consumption of potassium and phosphoric acid, Lende-Njaa. 219 



The phosphate rock deposits of south-central Tennessee, Hook and Brown 220 



Influence of lime on the physical properties of soil, Engels 220 



Injurious effect of lime on upland moor soils, Densch and Arnd 220 



The action of sulphur on plant production, Pfeiffer and Blanck 220 



Manganese in the living organism and its agricultural appUcations, Lepercq.. . 220 



Unexhausted manurial values of feedstuffs and fertilizers, Voelcker and Hall.. 221 



AGRICULTURAL BOTANY. 



Studies in plant physiology, Maze 221 



Notes on depression of freezing point of vegetable saps, Gortner and Harris 221 



UtiUzation of solar energy' by green plants. Putter 221 



The influence of humidity and dryness on anatomical structure, Choux 221 



Respii-ation in tropical plants and coloration of organs, Tobler 222 



A method of studying transpiration, Darwin 222 



The effect of light on the transpiration of leaves, Dai'win 222 



Influence of light and temperature on germination of Chloris dliata, Gassner. . 222 



The action of light on chlorophyll, Wager 222 



