CONTENTS. m 



Pago. 



Accumulation and utilization of atmospheric nitrogen in soils, Lipman et al. . 325 



The nitrate formation and nitrate content in moor soil, Ritter 325 



New nitrogenous fertilizers, Stutzer 326 



Tests of the agricultural value of Burkheiser salt, De Molinari and Ligot 326 



Influence of ferrous sulphate and gypsum on yield and nitrogen, Lipman et al . . 326 



Magnesia in agriculture, Ilutin 326 



The fish-scrap fertilizer industry of the Atlantic coast, Turrentinc 326 



Inspection of commercial fertilizers, Elaskins, Walker, Jones, and Frost 327 



Average composition of commercial fertilizers from 18S0 to 1912, Cathcart 327 



Analyses and valuations of fertilizers and home mixtures, Cathcart et al 327 



Report on commercial fertilizers, 1913, Jenkins and Street 327 



Analyses of commercial fertilizers, Hartwell et al 327 



AGRICULTURAL BOTANY. 



Heredity of quantitative characters, Bruce 327 



An examination of theory of factors by methodical recrossing. Von Tschermak. 328 



Reduplication of terms in series of gametes, Bateson and Punnett 328 



Geographical races with fixed and variable characters, Vivand Morel 328 



Mendelism and acclimatization, Nilsson-Ehle 328 



Variation in first generation hybrids: Its possible explanation, Swingle 328 



Mosaic heredity, Blaringhem 328 



Is the law of uniformity of hybrids of the first generation absolute? Gard 328 



Two species which do not obey the Mendelian law of dominance, Bellair 329 



Variability of micro-organisms and inheritance of acquired characters, Heinze. . 329 



Mutations in pure lines of beans, Johannsen 329 



Grafting and asexual hybridization. Griffon 329 



Notes on parthenogenesis in plants, Thomas 329 



Genetic and nongenetic factors in the breeding of new varieties, Hagedoorn. . . 329 



Application of principles of genetics to some practical problems. Hurst 329 



A study of abnormal characters in seedlings, Strampelu 329 



The breeding of double flowers, Saunders 330 



Hybrids between species of Antirrhinum, Lotsy 330 



Nicotiana crosses, Thomas 330 



Crossing a wild pea from Palestine with commercial peas, Sutton 330 



Production of varieties of wheat possessing high baking strength, Saunders. . . 331 



A biometrical study of the seeds of the genus Brassica, Monnet 331 



The development of disease-resistant varieties of plants, Orton 331 



Experiments with peas in which the seeds adhere to each other, De Vilmorin. . 331 



Variability in seeds, Halsted et al 331 



Study of the hypocotyl in the field, Halsted et al 331 



The study of the hypocotyls of some root crops, Halsted et al 332 



Tuber formation by potato,^ Bauer 332 



The effects of assimilation in cultivated plants, Strakosch. 332 



Humidity and dryness as affecting germination, Munerati and Zapparoli 332 



Influence of manganese sulphate on germination, Crochetelle 332 



Influence of external conditions on resistance to cold by perennials, Winkler. . 333 



FIELD CROPS. 



[Cost of production of different farm crops at the New Jersey Stations] 333 



Twenty-third report of cooperative field experiments, 1911-12, Larsen et al. . . 333 



Removal of mineral matter from unfertilized soil by plants, I, Strigel 334 



Influence of botanical composition and harvest time on hay, II, Strigel 334 



Range improvement by deferred and rotation grazing, Sampson 334 



Pure types of cereals [with] observations on stability and variability, Bopuf 334 



Right and left handedness in cereals, Compton 335 



Fertilizing cereals, Zaragiieta 335 



On the cultivation and inoculation of legumes, Eichinger 335 



Phosphorus for alfalfa fields. Wing 335 



Alfalfa in South Carolina, Smith 335 



Mosaic inheritance in the hybrids of barley, Blaringhem 335 



Behavior, under cultural conditions, of Opuntia, Griffiths 336 



The result of selecting fluctuating variations, Surface 336 



Inheritance of waxy endosperm in hybrids of maize, Collins and Kempton. . . 336 



Corn improvement ^3^* 



The shrinkage of shelled com while in cars in transit, Duvei and Duval 337 



