II CONTENTS. 



Page. 



Preparation of crude fiber from fibers containing lignin, A. Duschetschnik ... 227 

 Estimation of starch in substances containing pentosan, S. Weiser and A. 



Zaitschek 227 



Quantitative chemical analysis of brain and cord, W. Koch 227 



Concerning the solution and swelling of colloids, K. Spiro 227 



Report of the agricultural chemist for the year 1902-1903, A. Lehmann 227 



Rapid method for volumetric estimation of carbon dioxid, T. Macara 227 



Filtration and incineration of slimy precipitates, M. 1 Uttrich 227 



Bydrazin sulphate in eudiometric analysis, J. de Girard and A. de Saporta. . . 227 



Chemical technology and analysis of oils, fats, and waxes, J. Lewkowitsdi. . . 228 



New sedimentation apparatus for soil analysis, C. Bortolotti 228 



BOTANY. 



Influence of nutrition on sex of dioecious plants, E. Laurent 228 



Stimulating effect of metallic salts on plants, M. Kanda 228 



Native economic plants of the Transvaal, J. B. Davy 228 



Commercial plants of Germany, F. W. Neger 228 



Role of alkaloids as a source of nitrogen for plants, L. Lutz 228 



Assimilation by chlorophyll, C. Bernard 229 



Effect of temperature on carbon dioxid assimilation, < Jabrielle L. C Matthaei. 229 



Some results of cross pollination, Leclerc du Sablon 229 



FERMENTATION — BACTERIOLOGY. 



Action of radium on micro-organisms, A. B. Green 230 



Ferments causing depreciation of wines, P. Maze and P. Pacottet 230 



Effect of anilin colors on invertin, S. S. Mereshkowsky 230 



Nutrient media f< >r the cultivation of bacteria, ( i. Hesse 230 



Method of cultivating anaerobic bacteria, J. Bordet 230 



Mucin as a bacterial product, L. F. Rettger 231 



Agglutination affinities of related bacteria, T. Smith and A. L. Reagh 231 



Nonidentity of agglutinins acting upon bacteria, T. Smith and A. L. Reagh.. 231 



Bacilli of the root tubercles of red clover, L. Petri 231 



Bacterial flora of cultivated soils, L. Hiltner and EL Stormer 232 



Influence of carbohydrates on gas exchange of yeast, E. Kollegorsky and < >. 



Zassouchine 232 



Study of the proteolytic enzyms of malt. R. Vandervaeren 232 



Chemical nature of the oxydases, K. Aso 232 



Studies of proteolytic enzyms of germinating barley, F. Weis 232 



The rapidity of enzymic reacti* >ns, R. < ». Herzog 232 



ZOOLOGY. 



Bearing of Mendelian principles of heredity on origin of species, A. D. Dar- 



bishire 232 



Forest zoology, K. Eckstein 232 



Rabbits for profit, J. T. Bird 232 



Wyi >ming ground squirrels 233 



Land and sea mammals of middle America and West Indies, D. G. Elliot 233 



Regulations for the protection of game in Alaska, 1904, J. Wilson 233 



Regulations for the protection of game in Alaska, J. Wilson 233 



Officials concerned with protection of birds and game, 1903, T. S. Palmer 233 



Officials concerned with protection of birds and game, 1904, T. 8. Palmer 233 



Definitions of open and close seasons for game, H. Oldys 233 



Destruction of vermin 233 



Batrachians and reptiles of Ohio, M. Morse 233 



Winter whitening of birds and mammals, G. E. II. Barrett-Hamilton 233 



A handbook of the genera and species of birds, IV, R. B. Sharpe 2-">4 



Destruction of birds of prey, .1. Aguet 234 



The ] m ttectii m of birds useful to agriculture, A . Meraz 234 



Useful birds on farm, how to attract and protect them. E. II. Forbush 234 



Useful and injurious birds of New Jersey, S. N. Rhoads 2.">4 



The birds of St. Vincent 234 



[Bird migration], C. H. Merriam 2:!4 



Bird migration in Great Britain and Ireland, A. Newton et al 234 



Introduction of 1 >ats, L. G. Blackman 234 



Owls in their relation to agriculture 235 



