II CONTENTS. [Vol. 41 



Pag-e. 



Color standards for cottonseed oil, Arny, Kish, and Newmark 714 



Lemon oil. — I, Fractional distillation and critical temperature, Ajon 7ir> 



Tlie U. S. P. test for methyl alcohol in ethyl alcoliol, Ehman 715 



Notes on the assay of hypochlorite solutions, Moerk and Foran 715 



The canning of apples. — Preventing pinholing, Bigelow 715 



Alcoholic fermentation of banana must, Perotti and Rivera 715 



METEOKOLOGY. 



Temperature influence on planting and harvest dates, Kincer 716 



Agricultural meteorologj' 716 



Monthly Weather Review 716 



Uncle Sam's dampest corner, Larrison 717 



Annual report of the [Philippine] Weather Bureau for 1916 718 



Climate and meteorologj', Fraser 718 



SOILS — FEBTILIZEES. 



Instructions for the sampling of soils, Lagatu 718 



Analyses of soils of Turner County, Worsliam ct al 718 



Lime and magnesia in Queensland soils, Briinnich 718 



Ol>servations about the soils of the Northeast Indian tea districts, Hope- 718 



The soil profile in the neighborhood of Buitenzorg [Java], White 719 



Physical texture of soils and production, Clouston and Padmanabha Aiyer_ 719 



Phenomena of clay plasticity explained, MacMichael 719 



Chemical reactions of the soil, Martin and Wirbel 720 



Soils and soil conditions, Harrison 720 



Soil biology, Mackenna 720 



Studies on the nitrogen content of liquid manure, II-IV, Blanck 721 



Action of cliemical fertilizers on mountainous prairies, Dusserre 722 



Experiments on fertilizers manufactured from peat, Tacke 722 



Absorptive power of peat litter for nitrogen, Minssen 722 



Utilization of nitrogenous refuse, Donath and Ulrich 723 



Field trials with the newer nitrogenous fei'tilizers, Rliodin 723 



Recovery of calcium phosphate in connection with ammonia, Gonne 723 



Bisulphate superphosphate, Lefort 723 



Comparative results with different phosphatic manures 723 



New experiments in potash fertilization, Soderbaum 723 



Lime and chalk : The pres.sing need for these on Essex soils, Robertson. 721 



By-product lime, Kosmann 724 



Agricultural utilization of tanning wastes, Fallot 724 



Fertilizer analysis [and registi'ations]. Woods and McDonnell 724 



AGKICULTUBAL BOTANY. 



Researches on growth and movement by cresograph, Bose and Das 724 



A new evaporimeter for use in forest studies, Bates 725 



The temperature coefficient of photosynthesis, Osterhout and Haas 725 



Changes of electrical conductivity under gootropic stimulation. Small 725 



The translocation of the mineral constituents of the jack bean, Buckner — 726 



Studies on anthocyanins : Color variation, Shibata and Kasiwagi 726 



The function of wood vessels, Giltay 726 



Mendelism and cytological mechanism of heredity, Delage and Goldsmith. 726 



Gametogenesis and fecundation in Zea, mays, Weatherwax 726 



The ancestry of maize, Kempton 727 



Hybrid perennial sunflowers, Cockerell 727 



Chondriosomes in plants, Chamberlain 727 



Physiological basis of morphological polarity in regeneration, Loeb 727 



ShouL-bearing tumors of eucalypts and angophoras, Fletcher and Musson_ 728 



FIELD CROPS. 



Irrigation of field crops in Nevada, Knight and Hnrdman 728 



[Report of work with field crops in Nova Scotia, 1918] 729 



[Report of field work in Tortola] 729 



Guide to experiments for 1919 [in Northumberland]. Gilchrist 729 



[Seed testing and experimental work at Oerlikon, Zurich], Volkart et al- 729 



