n CONTENTS. 



METEOROLOGY — WATER. 



Page. 



Annals of the Astrophysical Observatory, xVbbot and Fowle, Jr 421 



Solar heat received by the surface of the soil, Loisel 422 



Origin of ozone and variations in carbon dioxid of air, Henriet and Bouyssy. . . 422 



Meteorological observations at Storrs for the years 1905 and 190G, Esten 422 



Meteorological summary for 1906, Patton 422 



The weather during the agricultural year, 1906-7, Brodie 422 



Climatology 423 



Present trend of investigation on underground waters, Kemj) 423 



A study of the waters of Rio Verde, Urbina 423 



Water supply for villages, Phelps 423 



The broad irrigation sewage farm at Fresno, California 423 



Elementa of water bacteriology, Prescott and Winslow 423 



SOILS — FERTILIZERS. 



The production of active nitrogen in the soil, Fraps 424 



Absorption by soils, Patton and Waggaman 426 



Seven years' soil investigation in southern Illinois, Hopkins et al 428 



The maintenance of fertility 428 



Plans and summary tables of experiments at Wooster on soil fertility 428 



Farmyard manure, Hall 428 



Contributiontoknowledgeof microflora of barnyard manure, Lohnisand Kuntzc. 428 



Green manuring experiments, Zimmermann 428 



The nitrogen question, Gregoire 428 



Experiments with nitrogenous fertilizers, Schreiber 428 



Investigations on sulphate of ammonia and nitrate of soda as fertilizers, Blobel. 429 



Nitrate of soda and sulphate of ammonia, Damseaux 429 



On sulphate of ammonia containing free sulphuric acid, Lemmermann 429 



The effect of the new nitrogenous fertilizers on hemp, Stohr 429 



Comparative experiments with nitrogen lime and nitrate of soda, Kuhnert 429 



Nitrogen fertilizers, Stutzer 429 



On the influence of sterilization on the solubility of lime nitrogen, Kappen 429 



The behavior of lime nitrogen in storage. Von Feilitzen 430 



Experiments with calcium cyanamid, 1907 430 



The fertilizing action of calcium cyanamid, De Grazia 430 



The manufacture of calcium cyanamid, Kershaw 430 



The actual state of the nitrate of lime industry in Norway 430 



Phosphates, McMurtrie 430 



Tunisian phosphates, Bertainchand 430 



[Phosphate deposits in Tahiti] 430 



Increased production of phosphate rock in 1907 430 



Potash in granitic soils, Del Campo 431 



On the utilization of leucite, Manuelli 431 



The industrial treatment of leucite and leucitic materials, Gallo 431 



The potash industry : - - - 431 



[Fertilizers in connection with the beet-sugar industry] 431 



Fertilizer experiments with sulphur water, Miiller and Stormer 431 



Fertilizer analyses. Patten, Jodidi, and CoUingwood 431 



Analyses of fertilizers — fall season, 1907, Kilgore : 431 



Analyses of fertilizers — spring season, 1908, Kilgore 431 



Analyses of commercial fertilizers, Frear 431 



Commercial fertilizers and poisonous insecticides in 1907-8, Fraps 432 



Standard fertilizers, 1908, McGill 432 



AGRICULTURAL BOTANY. 



Mushrooms, edible and otherwise. Hard 432 



The yeast fungi. Kohl 432 



Acclimatization of plants, MacMillan 432 



Effect of partial removal of roots and leaves on development of flowe.-s, Shiga. 432 



Rapid transformation of starch into sucrose during ripening of fruits, Geerligs. 433 



Hydrolytic and catalytic ferments acting during the ripening of fruit, Tallarico. 434 



Transitory presence of hydrogen cyanid in ferns, Greshoff 434 



On the effects of certain poisonous gases on plants, Osterhout 434 



International catalogue of scientific literature. M — Botany 435 



