II CONTENTS. [Vol. 37 



Page. 



A new method for the determination of aldehyde sugars, Bougault 714 



The acid content of fruita, Bigelow and Dunbar 714 



Sources and composition of commercial invert sugar sirups, Jordan and Chesley 715 



Relative value oi different weights of tin coating on canned food containers. . . 715 



War food. Handy - 715 



The evaporation of fruits and vegetables, Caldwell 715 



A new method for the preparation of pectin, Caldwell 715 



Carbonation studies. — I, Mechanical stirrer for carbonation, Patten and Mains. 716 



Vinegar investigation. — Changes that cider undergoes, Hartman and Tolman. 716 



Preserving fish for domestic use, Moore 716 



A practical small smokehouse for fi.<h 716 



METEOROLOGY. 



New methods of weather prediction, Voss 716 



Factors influencing condensation of aqueous vapor in the atmosphere, Masini. . 716 



Relation between forests and atmospheric and soil moisture in India, Hill 716 



Rainfall and gunfire, Angot 717 



Correlation between atmospheric phenomena and the yield of crops 717 



Phenological observations in the British Islands, Clark and Adames 717 



Ciimatological studies. — German East Africa, Lyons 717 



SOILS — FERTILIZERS. 



The soil solution obtained by the oil pressure method, Morgan 717 



Is the humus content of the'soil a guide to fertility? Carr 718 



Effect of addition of organic matter on development of soil acidity. Miller 718 



Is there any fungus flora of the soil? Waksman 718 



Biological variations in soil plats, Allison and Coleman 719 



The effect of sterilization of soils by heat and antiseptics, Koch 719 



Some effects of auximones on the growth of Lemna minor, Bottomley 719 



Du Page County Soils, Hopkins, Mosier, Van Alstine, and Garrett 720 



Soil survey of Dickey County, N. Dak., Bushnell et al 720 



Sand devastation, Collins 720 



The improvement of the poor soils and run-down soils of New Jersey, Dickey. . 720 



Manure and fertilizers for peat soil poor in nitrogen, von Feilitzen 720 



American sources of nitrog<'n, Norton. 721 



The production of sulphate of ammonia for 1915-1(> 721 



Adsorption of ammonium sulphate by soils and quartz sand, Wolkoff 721 



Saltpeter: Its origin and extraction in India, Hutchinson 722 



Potash from incinerator ash of the Northwest, Thing 722 



Tetraphosphate, Vinassa - 722 



Basic slag as affecting agricultural development, Gilchrist and Louis 723 



The liming of limy lands, Rosenfeld 723 



Rules and regulations for the enforcement of the lime-barrel act, Stratton 723 



The fertilizer value of city wastes. — II, Garbage tankage, Schroeder 723 



Turf bedding and compost, Vikhliaev 723 



Artificial fertilizers, their present use and future prospects, Russell 724 



The American fertilizer handbook 724 



Commercial fertilizers, Jones, jr., et al 724 



Results of fertilizer inspection, spring season 1917, Patten 724 



AGRICULTURAL BOTANY. 



Metroclinic inheritance in (Enothera reynnldm ,La Rue and Bartlett 724 



A new type of non-Mendelian variation in plants, I keno 725 



The relation between evaporation and plant succession in a given area. Gates. . 725 



Adaptations of vegetation to climate, Massart 725 



Temperature and life duration of seeds, Groves 725 



Duration of leaves in evergreens, Pease 726 



The reaction of plant protoplasm, Haas 726 



The mode of action of plant peroxidases. Reed 726 



Action of potas.sium permanganate with peroxidases, Bunzel and Hasselbring. . 726 



The response of plants to illuminating gas, Doubt 726 



Damage to greenhouse crops and soil from escaping illuminating gas. Stone 727 



Leaf nectanc«3 of Go.ssypiuni, Reed 727 



On the formation of nodules in the cortex of Hevea hrasUicnsU, Bryce 727 



