II CONTENTS. (Vol. 38 



Page. 



A rapid colorimetric method for estimating glucose in urine, Isaacson 713 



Italian turpentines, I-III 713 



Fats and fatty acids from petroleum , Moore and Egloff 714 



A new oil extracted from Blephawcalyx gigantea (Horco-molle), Zelada 714 



Power-alcohol: Proposals for its production and utilization in Australia 714 



Microbiological retting. — Applications in colonial textiles, Heim and KuUier. 715 



Chemicals in use in the rubber industry and their applications, Ultee 715 



The chemical composition of Hevea latex, Gorter 715 



Possibility of manufacturing acetic acid on rubber estates, Keuchenius 715 



Home canning and curing ot meats, Hauser 715 



The canning and preserving of vegetables and fruits, Elliot 715 



Canning chart, directions, and recipes, compiled by Wimple 715 



How to utilize and preserv-e fruits with pr,esent scarcity of sugar, Truelle 715 



Fruit and vegetable drjdng. — Types and models of driers, Overly 716 



A successful community drying plant, Pugeley 716 



METEOROLOGY. 



Climatology, Connor 716 



Where wheat is grown 717 



Spring frosts ^ 717 



Storm rainfall of eastern United States, Morgan and Paul 717 



The desiccation of the earth, von Herrmann 718 



SOILS — FERTILIZERS. 



Soil survey of Meriwether County, Ga. , Baldwin and Kerr 718 



Soil survey of 1 ■ ichmond County, Ga. , Bushnell and Snyder 718 



Kane County soils, Hopldns, Mosier, Van Alstine, and Garrett 718 



Soil surv'^ey of KimVjall County, Nebr . , Meyer et al 719 



The experimental determination of a dynamic soil moisture minimum. Pulling. 719 



Moisture equilibrium in pots of soil equipped with autoirrigators, Holmes. .. 719 



lielation of carbon dioxid to soil reaction, Hoagland and Sharp 720 



[Partial sterilization of soil]. Tiussell 720 



Humification of compounds in vegetaljle matter, Trusov 720 



The decomposition of sweet clover under greenhouse conditions, Maynard 721 



Composition of fallen leaves of forest trees and their quantities, Moriya 722 



The utilization of sewage water in Italy, Aita 723 



Commercial fertilizers in war time, Thome 723 



Influence of sodium nitrate upon nitrogen transformations in soils, Coleman. .. 723 



Influence of nitrates on nitrogen-assimilating bacteria. Hills 724 



Addition of tar to cyanamid to facilitate spreading, Schomoeger and Lucks . . . 725 



A new German phos^atic and potassic manure, Beger 726 



Substitution for Stassfurt potash salts of Austrian phonolites, Stoklaaa 726 



Bromin content of German potash salts. Winkler 726 



New experiments on the action of sulphur on crop production, Pfeiffer 726 



The use of iron in agriculture, Monnier and Kuczj'aski 727 



Manurial experiments with manganese slag, Popp 728 



AGRICULTURAL, BOTANY. 



A textbook of botany for colleges, Ganong 728 



Plant physiology, Palladin, edited by Livingston 728 



[Studies in plant nutrition], Gile and Carrero 728 



Biometric studies on somatic and genetic physiology of sugar beet, Harris .... 729 



Growth and inhibition, MacDougal and Spoehr 729 



Approximation of limits of germination in seeds of Lepidium sativum, Lesage .... 729 



The physiological significance of tannin, Dekker ". 729 



On the relation of chlorin to plant growth, Tottingham 729 



Study of salt proportions in nutrient solution containing chlorid, Trelease 730 



Relation of concentration of nutrient solution to growth of wheat, Trelease 730 



Effect of renewal of culture solutions on growth of wheat, Trelease and Free 730 



Experiences in use of copper sulphate in destruction of algae, Embrey 731 



Serodiagnostic studies on gymnosperms, Kotetsu 731 



Studies on root nodules, SMbata and Tahara ". 731 



Variegation in Plantago, Ikeno 731 



Recent studies on variation in some micromycetes, Mutto and Pollacci 731 



