II CONTENTS. 



Page. 



The analysis of some new tanning materials, F. A. Blockey 1016 



A method of gas analysis, A. Samojiloff and A. ludin 1016 



Sampling and' preparation of shoddy, wool dust, etc., for analysis, L. Meggitt. 1016 



The pentosans, G. Bertrand 1017 



Action of ammonium chlorid on various silicates, F. W. Clark and (i. Steiger. 1017 



A new viscometer, L. Meggitt 1017 



BOTANY. 



A university text-book of botany, D. H. Campbell 1017 



The movements of plants, F. Darwin 1017 



Injuries to plants by London fog and engine smoke, G. Henslow 1017 



Influence of mineral salts on production of tuliercles on pea roots, E. Marchal. 1017 



The formation of bacteroids in artiticial media, A. Stutzer 1018 



The assimilation of free elementary nitrogen, E. Jacobitz 1018 



The nitrogenous constituents of green leaves, E. Winterstein 1018 



Fixation of carbon by leaves and diffu.sion of carbon dioxid, H. T. Brown 1018 



Presence of a glucosid formed during germination of beech seed, P. Tailleur . . 1018 



A physiological balance, A. Petermann 101 8 



The genera of Gastromycetes, C. G. Lloyd 1018 



MonJIid silopldla, an economic fungus of Java, F. A. F. C. Went 1018 



Mon'ilia sitopliild and its appearance as the first vegetation on the ash fields 



left by volcanic eru])tions, A. G. Vorderman 1019 



The useful plants of French Guiana, M. Greshoff 1019 



FER.MEXTATIOX — BACTERIOLOGY. 



Bacterial diseases of plants, C. J. J. van Hall 1019 



On different forms of hereditary variation of microbes, M. W. Beijerinck 1019 



8yml)iosi.s and symbiotic fermentation, J. R. Green 1020 



The disinfectant properties of washing powders, C. F. Doane 1020 



The effect of physical agents on bacterial life, A. INIacfadyen 1020 



Efficiency of water filters in removing bacteria, 8. De M. Gage 1020 



Media for estimation of bacteria in water and sewage, S. De M. Gage, E. B. 



Phelps 1020 



Bacteria and sewage, F. Clowes 1021 



Bacteria and the disintegration of cement, R. G. Smith 1021 



The nature of certain oxidizing ferments, J. H. Kastle and A. S. Loevenhart. 1021 



Oxidizing enzyms, C. R. Newton 1021 



Production of casease by streptothrix parasite, E. Bodin and C. Lenormand.. 1021 



ZOOLOGY. 



Destroying gophers and prairie dogs, D. E. Lantz 1021 



A coli bacillus affecting the hamster, B. Galli- Valerio 1022 



Studies on the l)acillus pathogenic for rats, B. Issatschenko 1022 



The value of tlie bacillus of Lanysz in destroying rats, G. Markl 1022 



Studies on Ijacillus of Danysz and a new organism pathogenic to rats, M. Grimm 1022 



The biology of the trypanosoma of rats, Jiirgens 1022 



Annotated list of the birds of Oregon, A. R. Woodcock 1022 



The birds of Ontario in relation to agriculture, C. W. Nash 1023 



The relation of birds to horticulture, W. R. Lazenbv 1023 



Bird notes, M. W. Doherty " 1023 



The feeding hal )its of Corvus comix, G. Staes 1023 



Value of FnnrjlUd cfdehs for agriculture and horticulture, J. Ritzema Bos 1023 



Legislation for the protection of birds other than game birds, T. S. Palmer. . . 1023 

 Directory of State officials and organizations concerned with the protection of 



birds and game, 1902, T. S. Palmer 1023 



METEOROLOGY. 



Storms accompanied by snow at different stations in Italy 1023 



Meteorological summary for 1900, C. A. Patton ._. 1024 



Meteorological observations, II. II. Hume and A. W. Blair 1024 



Meteorological summary for the year 1901, D. Valet 1024 



The moon and thunderstorms, A. B. MacDowall 1024 



