CONTENTS. Ill 



On the agronomical equivalent of artificial magnesium carbonate, Kanamori.. 321 



Top-dressing with magnesium sulphate, 8irker 321 



]\Ianganese compounds as fertilizers for maize, Sutherst and Ingle 322 



Do manganese salts stimulate plant growth? Rhodin 322 



Modern niter beds 322 



Crude ammonia, Sevegrand 322 



On the manufacture and application of peat litter, Rautakoski 322 



The extraction of potash from feldspathic rock, Cushman and Hubl)ard 322 



The commercial fertilizer industry, Stange 322 



The development of the superphosphate industry in Italy, Maizieres 322 



Lime and its relation to agriculture, Wicken 323 



Vegetable ash as a manure, Guerrero 323 



Fertilizer and oil, Marsh and Cobb 323 



Inspection of commercial fertilizers, Trowbridge 323 



Analyses of commercial fertilizers, Stackhouse and Hardin 323 



Comments upon the State fertilizer law, Knisely 323 



AGRICULTURAL BOTANY. 



Report of the department of botanical research, MacDougal 323 



Physiological constant for germinating stage of cress, Waugh and Pomeroy 324 



The transpiration current in plants, Janse 324 



The chemical nature of root secretions, Stoklasa and Ernest 325 



The structure of root tubercles in leguminous and other plants, Bottomley 325 



Assimilation of atmospheric nitrogen by Lol'mm temuleniuvi, Hannig 325 



Heredity in plants and animals, Wood and Punnett 325 



A critical review of the known cases of bud variation, Cramer 325 



Suggestions concerning certain bud variations, East 325 



Variation in peas, Waugh and Pomeroy 325 



Cray's new manual of botany, Robinson and Fernald 326 



Handbook of flower pollination, Knuth, trans, by Davis 326 



FIELD CROPS. 



A lesson in intensive farming, Forbes 326 



Report of the agriculturist, Brooks, Fulton, and Gaskill 327 



Seeding mowings, Brooks 327 



[Early Amber sorghum and alfalfa] , Lindsey 327 



Observations on nurse crops for alfalfa, Clark , . 328 



Disk-harrowing alfalfa, Forbes 328 



Alfalfa, Shaw 328 



Dodder in alfalfa seed, Stewart and French 328 



Culture tests with varieties of barley in 1905 and 1906, Boonstra 328 



Irrigation of barley, Nowell 329 



Contributions to the biochemistry of barley, Ford and Guthrie 329 



Cotton culture, Veauvy and Coste 330 



Some conditions influencing cotton production, Newman 330 



The nitrogen content of Egyptian cotton, Schindler 331 



The cultivation of potatoes, Soule and Vanatter 331 



The skin of different potato varieties, Kreitz 332 



Influence of cross- and self-fertilization on sugar in sugar beet, Andrli'k et al. . 333 



The essential mineral constituents of the sugar cane, Murakami 333 



Cultivation of the sugar cane in Peru 333 



Virginia tobacco experiments, Mathewson, Anderson, and Cocke 333 



Results of seed investigations for 1907, Pammel and King 334 



Pure seed investigations, Gregory 335 



Seed work. Stone ^ 335 



Development of plant breeding in Denmark, Sweden, and Probstei, Holtmeier. 335 



HORTICULTURE. 



Experiments in drug plant cultivation. Hood 335 



The Montreal market muskmelon industry, Stuart 335 



Tomato notes, Munson 336 



Moisture and decay loss of Hubbard squash in storage, Stuart 336 



Fruit list for 1908 336 



Orchard survey of Wasco County, Lewis and Allen 336 



Feeding the orcrhard. Waters 336 



Tillage c. sod-mulch, Hedrick 337 



