n CONTENTS. 



Page. 



Modified Wohlgemuth method for amylase actixity, Bodnar 713 



Bacteriological methods iu food and drugs laboratories, Schneider 713 



The determination of the starch content of potatoes, De Yries 713 



Chemical testing of milk and cream, Shaw 713 



Determination of the quantity of fat in cream, Lindet 714 



The colorimetric determination of acetylene, Weaver 714 



Report of the bacteriologist, Giltner 714 



Preliminary bulletin on canning. Bitting 714 



Experimental work on soda cellulose. Wells 714 



METEOROLOGY. 



Problems and results of agricultural meteorology, Gauer 714 



Meteorological observations at Massachusetts Station, Ostrander and Potter 714 



[Meteorological observations], Seeley 714 



Climatology [of Quebec], Decarie 715 



Temperature inversions in relation to frost, McAdie 715 



Influence of the principal meteorological factors on winter rye, Zalenskii 715 



Physical conditions in sphagnum bogs, Rigg 715 



Smoke as a source of atmospheric pollution, Goss 715 



Sulphur dioxid content of the atmosphere of the smoke zone, Holmes et al 716 



Extent of contamination of the atmosphere in the Selby ' ' smoke zone, ' ' Wells. . 716 



SOILS — FERTILIZERS . 



A student's l>ook on soils and manures, Russell 716 



Soil survey of Limestone County, Alabama, Burke and O'Neal, jr 717 



Soil survey of Columbia County. Arkansas, I.ounsbury and Deeter 717 



Soil survey of Putnam County, Florida, Mooucy et al 717 



Soil survey of Nemaha County, Ncl)ri\8ka, Clever et al 717 



Soil sun'ey of Oneida County, New York, Maxon ct al 718 



The soils and agricultural development of the Mohawk Valley, Fippin 718 



Analyses of soils of different localities in the Belgian Congo, ]3at/. 718 



Experiments at Oxford on the analysis of Belgian Congo soils, Leplae 718 



A study of nitrification in Philippine s<iils, Pafiganiban 718 



Nitrogen content of the humus of arid soils, Alway and Bishop 719 



Investigations on ammonia adsorption by soil. Pinner 719 



Solubility of iron compounds in the soil, Masoni 720 



Soil moisture investigations 720 



The water-suppljdng power of the soil. Pulling and LiAingston 721 



New means of measuring concentrat ion of soil solution, Bouyoucos and McCool . 721 



Changes in soils brought about by heating, Wilson 722 



Soil fertility. Rush 722 



Maintaining fertility in Wisconsin drift soil area in Iowa, Stevenson et al 722 



The fertility of Iowa siiils, Brown 723 



Rotation, fertilizer, and manure experiments, Shoesmith 723 



Peculiar plant physiological action of an ammonium fertilization, Soderbaum. . 724 



Some observations on storing calcium cyanamid, Burgess and Edwardes-Ker . . 724 



The world's supply of potash 724 



The origin, mining, and preparation of phosphate rock, Sellards 724 



Tennessee phosphate practice, Barr 724 



Sensitiveness of lupines to calcium, Pfeiffer and Blanck 724 



Shall g>'psum be used as a fertilizer? Meyer 725 



The value of l)y-products rich in lime, von Feilitzen 725 



Limestones of New York, Collison and Barker 725 



Limestone and marl deposits of South Carolina, Calhoun 725 



[Agricultural lime] 726 



The fertilizing action of common salt, Soderbaum 726 



Action of free sulphur on vegetation, BosinelU 726 



Utilization of coffee pulp, etc., as manure for tropical crops, Anstead 726 



Fertilizer inspection 726 



Farmers' bulletin on fertilizers 726 



[Analyses of fertilizers and cotton-seod meal], I\ilgt)re et al 727 



Analyses and valuations of commercial fertilizers 727 



[Commercial fertilizers] 727 



