3j CONTENTS. [Vol.35 



Page. 



The quantitative determination of urea, Mom ..................... 112 



The chemical composition and evaluation of lime-sulphur solutions, Bodnar. . 112 



Jelhes and marmalades from citrus fruits, Cruess ......-._...-. 113 



The cUstiUation of apple cider in sugar-beet distilleries, baillard ... 116 



Role of bacteria in voluntary decrease of acidity m wines, Ivrupemkov 113 



A handbook for cane-sugar manufacturers and their chemists, bpencer 114 



Osage-orange waste as a substitute for fustic dyewood, Kressmann 114 



Ground-wood pulp, Thickens and McNaughton 114 



METEOROLOGY. 



Agricultural meteorology, Smith 114 



Stories of the atmosphere, Nunn i|o 



Dry fot^s and their classification, Shenberg ilo 



Monthly Weather Review - .- 115 



Climatological data for the United States by sections lib 



Chmatological data for the United States by sections 116 



Rainfall data of Berkeley, California, Reed 116 



Rainfall data of Berkeley, California, II, Reed and White 116 



California earthquakes during 1915, Palmer 116 



Meteorological observations in Panama 116 



Annual report of the weather bureau, 1914 116 



Is rainfall decreasing? 116 



SOILS — FERTILIZERS. 



Soil survey of the Merced area, California, Watson et al 117 



Soil survey of Warren County, Indiana, Grimes and Stevens 117 



Soil survey of Muscatine County, Iowa, Hawker and Johnson 117 



Soil siuvey of Seward County, Nebraska, Meyer et al 117 



Soil survey of Thm-ston County, Nebraska, Meyer et al 118 



Soil survey of Florence County, South Carolina, Agee et al 118 



Soil sm-vey of M'Dowell and Wyoming counties, West Virginia, Latimer 118 



Analyses of Nova Scotian soils, Harlow 118 



Phosphoric acid content in some soils of central Peru, Hutin 118 



Soil investigation in the forest district of Philippsburg, Ganter 119 



Study of the soils of the east coa^t [of Madagascar], Carle and Gohier 119 



The predominating minerals in Dutck East Indian soils, Mohr 119 



Soils and their treatment, Spafford 119 



The decomposition of clay marl, CirieHi 119 



Improving acid soils, Blair ., 120 



Investigations of soil air on upland moors, Densch 120 



Soluble nonprotein nitrogen of soil, Potter and Snyder 120 



The nature of humic acid, Oden _ 120 



Relative numbers of rhizopods and flagellates in the fauna of soils, Kofoid .... 121 



Soil sampling for bacteriological analysis, Noyes 121 



Fertilizer situation in the United States, Houston 121 



Mineral production of the United States in 1914, McCaskey 121 



Formula for the use of chemical fertilizers in agriculture, Concha 121 



Soil experiment fields. — A progress report, Roberts 121 



Green manuring in the Central Provinces, Allan 123 



The use of nitrogenous plant foods, 1898-1912, Lipman and Blair 123 



The utilization and accumulation of nitrogen, Lipman and Blair 125 



Lime nitrogen fertilizer experiments in 1915, Ahr 126 



Experiment on the effectiveness of some new ammonium salts, Wagner 126 



Potash siipplies during the war 126 



Potash: Review of the present position, Bruce 126 



The composition of wood and plant ash. Berry 127 



Composition of bat guano from Uruguay, Scliroeder 127 



Fertilizing value of sugar beet crowns and leaves 127 



Inspection of commercial fertilizers, 1915, Mumford and Trowbridge 127 



Analyses and valuations of commercial fertilizers, Cathcart et al 128 



AGRICULTURAL BOTANY. 



Plant life, Hall 128 



Maas mutation in (Enothera prallncola, Baitlett .....[......../... 128 



(Enothcra g'ujas nanella, a Mendelian mutant, De Vries 128 



Three types of commercial vanilla in Tahiti, Constantin and Bois 129 



