II CONTENTS. I Vol. 41 



Page. 



Picric acid method for the estimation of sugar in blood, De Wesselow 506 



Notes on the determination of water solubles in leather, Frey and Clarke_ 506 



The industries of the farm, Larbaletrier 506 



Methods of preservation of fruits and vegetables, Manaresi 506 



Preserving in cold without sugar, alcohol, or antiseptics, Bertrand 506 



The mechanism of the preservation of fruits in cold water, Bertrand 506 



Composition and caloritic value of sirups and molasses, Browne 507 



Deterioration of manufactured cane sugar by molds, N. and L. KopelofE- 507 



Production of glycerin from sugar by fermentation, Eoff et al 507 



Mannose yeast, Mezzadroli 508 



Conference on recent developments in the fermentation industries 508 



Potash from kelp: Preliminary paper, Turrentine and Shoaff 508 



Hemlock bark as a source of tannin, Edwardes 509 



METEOKOLOGY. 



Climatological data for the United States by sections 509 



Observations at Massachusetts Experiment Station, Ostrauder and Smith_ 509 



Meteorology, Trivett 509 



The mild winter of 1918-19, Brooks 509 



Some characteristics of the rainfall of the United States, Ward 510 



Kainfall regimes in Mexico, L6pez 510 



The relation of rainfall to configuration, Salter 510 



Fertilizing value of rain and snow, Shutt 510 



The period between blooming and ripening, Hegyfoky 510 



SOILS FERTILIZEKS. 



Classification of humus-free and humus-poor soils oj. Sweden, Atterberg 510 



Classification of soils liigh in humus of Sweden, Atterberg and Johansson. 511 



Soil survey of the Los Angeles area, Cal., Nelson et al 511 



Analyses of soils of Terrell County [Ga.], Worsham, jr., et al 512 



Report on geology of east central Minnesota, Harder and Johnston 512 



Rate and extent of solubility of soils under treatment, Bouyoucos 512 



IMoisture content of subsoil to hygroscopic coefficient, Alway et al 514 



Relation of soil moisture to orchard irrigation practice, Fortier 515 



SteriUzation of soils and influence of protozoa on fertility. TrufCaut 515 



Soils, Davis 515 



Investigational work with fertilizers, Shutt 516 



The synthesis of ammonia at high temperatures. III, Maxted 516 



Sodammonium sulphate. Niter cake in fixation of ammonia, Dawson 516 



Availability of the nitrogen in garbage tankage. Bear and-Walley 517 



Study of nitrification of leather and oil cake, Guillin 517 



The peat deposits of Minnesota, Soper 517 



Peat, Guieu 518 



Reconnaissance of Uinta Mountains regarding phosphate, Schultz 518 



The fertilizing action of bone meal phosphate, Beger 518 



Our natural resources of potash. Brown 518 



Nature of recombined potash in cement mill dust, Merz and Ross 518 



German potash industry during the war, Edwards 519 



Tests with potash on lowland moor soils, I-II, Werth 519 



Injurious effects of potash and sodium salts upon soil structure, Hager — 519 



Comparative value of various forms of limestone, Stewart and Wyatt — 520 



Results of liming experiments by Finland INIoor Culture Society, Rindpll_ 520 



The ammonia-fixing capacity of calcium sulphate, Bear and Workman.. 521 



The effect of manganese on the growth of wheat, McHargue 521 



AGRICULTURAL BOTANY. 



Plant succession in relation to range management, Sampson 521 



Botanical survey [in India], Carter 522 



Agricultural botany [in India], Howard 522 



Forest botany [in India], Hole 522 



Evolution through normal diversity. Cook 522 



The symbiomorphoses ; recent studies on asexual hybridization, Daniel__ 522 



Underground runners. Warming 522 



Natural grafting of branches and roots, Dallimore 522 



