rV CONTENTS. 



Page. 



I.iino nitrogen and its manufacture, Kempski 730 



Present status of the electro-clieniical manufacture of nitrate of lime 731 



The origin of potash deposits, Erdmann j 731 



The utilization of potash iu industry and agriculture, Krlsche 731 



Use of crude potash salts in 1006 and 1JJ02, Siemsseu 731 



The phosphate of Thomas slag, Kroll, jr 73) 



The phosphates of Florida 731 



Phosphate In South seas, Dreher 731 



Composition of the products of the eruption of Vesuvius in 1906, Paris__ 731 



Australian fish fertilizer. Baker 731 



Ash content of Ecldonia caaspcrata and percentage of lodin. White 732 



Analyses of soils, guanos, and other fertilizing materials 732 



Commercial fertilizers and chemicals, Hudson, Stalllugs, et al 732 



The new Ohio [fertilizer] law 732 



AGRICULTX7RAL BOTANY. 



Botanical features of North American deserts, MacDougal 732 



Distribution of the roots of some annual cultivated plants, Kotmistrov___ 732 



Specialization and alternati<m of host ])lants in the UredineiTp. Krieg 733 



The present status of agricultural plant bi*eediug, Fruwlrth 733 



Notes on bud mutations of Holanum mngJia. Meckel 733 



Influence of wound stimuli on adventitious buds. Van Beusekom 733 



Some notes on grafting varieties of beans, Daniel 733 



A method for the quantitative determination of transpiration, Freeman 733 



A new respiration calorimeter. Pierce 734 



On endospermlc respiration in certain seeds, Stoward 734 



Vitality and self-digestion of endosperm of some Gramiuese, Bruschi 734 



Influence of sugar solutions on respiration, Maige and Nicolas 734 



A physiological study of the development of fruits and seeds, Lublmenko_ 735 



A chemical study of the ripening of tomatoes, Albahary 735 



The physiological role of fat in plants, Dubaqule 735 



The effect of electricity upon plants, Priestley 735 



Temperature and growth. Balls 736 



The influence of temperature on the action of poisons, Zehl 737 



Studies on germination and plant growth, Pickering 737 



The toxic property of bog water and bog soil, Dachnowski 738 



On plasmolysis, Osterhout 738 



Concentration of green coloring matter in plants, Lubimenko 738 



Does the chemical substance called chlorophyll exist? Tsvett 739 



Influence of nutrition, water, and illumination on plants, Biingei* :_ 739 



FIELD CROPS. 



Seed culture and plant l)reeding in Wiirttemberg, Fruwirth 739 



Report of the government agrostologlst and bontanist, Burtt-Davy et al__ 739 



Dry farming in Wyoming, Cooke 739 



Rules for uniform seeding of grains for comparative investigations 739 



Cereal and leguminous crops, Cavalcante ^ 740 



Report on tests with varieties of oats and barley at Garforth, 1907, Seton_ 740 



Water requirement of beets, rye, and barley, von Seelhorst 740 



Water I'equirement of lupines, potatoes, barley, and rye. von Seelhorst — 740 



Water content of grain furnished German army from crop of 1906 740 



The culture of sei-radella and lupines on heavy soils, Heinze 740 



Classification of brewing barleys from a technical standpoint 741 



Physical characters of barley. Brown 741 



The distinguishing characters of two-rowed barley Aarieties, Broili 741 



Smooth-awned barleys, Regel 741 



Enzyms in stored barley 741 



[Analyses of barley] 742 



Breeding agricultural plants, Fruwirth 742 



Securing a stand of clover on the southern Iowa loess, Watson 712 



Mendelian studies of Egyptian cotton. Balls 743 



Cotton, De Sa 743 



Cotton growing and Nigeria, Birtwistle 743 



The effect of lime nitx-ogen on flax, Hoffmeister 743 



