II CONTENTS. 



Page. 



A review of progress in the chemistry of waters, A. Goldberg 537 



Permanganate requirements of waters containing large amounts of chlorids, 



Ruppin 537 



Determination of manganese in drinking water, G. Baumert and P. Holderleiss 537 



The occurrence of mannan in trees, roots, and fruit, F. H. Storer 537 



Text-book of physiological chemistry, 0. Hammarsten ami J. A. Mandel 537 



Physiological and pathological chemistry, E. Salkowski and W. R. Orndorff.. 537 



Rapid testing of the more important foods and condiments, S. Lenobel 537 



Methods for the detection of renovated butter, G. E. Patrick 537 



Examination of fat by Zeiss-Wollny refractometer, K. Farnsteiner 537 



Estimation of fat in meat and meat products, T. Kita 537 



Refractometer scale for use with fats and oils, A. E. Leach and H. C. Lythgoe. 538 



Iodin number of several fats and waxes, H. L. Yisser 538 



Apparatus for determining melting point, F. Kutscher and Otori 538 



The identification of yeast extract in meat extract, M. Wintgen 538 



New method of estimating cellulose, 0. Simon and H. Lohrisch 538 



Studies on the calorimetry of urine, K. Farkas and M. Korbuly . : 538 



Determination of sulphur and phosphoric acid in foods, feces, and urine, J. A. 



Le Clerc and W. L. Dubois 539 



The identification of corn meal in bread, D. Ottolenghi 539 



The gravimetric estimation of boric acid, A. Part hei 1 and J. A. Rose 539 



The estimation of boric acid as phosphate, F. Milius and A. Meusser 539 



The influence of hydrogen peroxid on enzyms, A. J. J. Vandevelde 539 



Tables for chemical calculations, H. L. Wells 539 



A new apparatus for preparing hydrogen sulphid, etc., H. Arzberger 539 



The use of electricity in laboratory operations, W. Zielstorff 539 



Yearbook of chemistry, R. Meyer et al 539 



Association of Official Agricultural Chemists, 1904, H. W. Wiley 539 



A select bibliography of chemistry, 1492-1902, H. C. Bolton 540 



BOTANY. 



The development of Primus americana, R. E. Buchanan 540 



The origin and nature of color in plants, H. Kraemer 540 



Mannite as a possible reserve food in flowering plants, F. H. Storer 541 



Assimilation of atmospheric nitrogen through turf-frequenting fungi, C. Ternetz. 541 



Recent experiments in soil inoculation 541 



Parasites as an aid in determining organic relationship, N. A. Cobb 541 



New or noteworthy Philippine plants, II, E. D. Merrill 541 



Notes on useful plants of Kongo, II, F. de Wildeman 542 



The vegetation of the Minbu District, Upper Burma, A. T. Gage 542 



ZOOLOGY. 



Biological reconnaissance of the base of the Alaska peninsula, W. H. Osgood . . 542 



Game laws for 1904, T. S. Palmer, H. Oldys, and R. W. Williams, jr. . . 542 



Hunting licenses; their history, objects, and limitations, T. S. Palmer 542 



Mongoose , 542 



Destroying prairie dogs, A. T. Peters and S. Avery 542 



Jackal-proof fencing 543 



South African jackals, P. J. Du Toit 543 



Protecting nursery stock and young trees from rabbits and hares 543 



Beneficial and harmful mammals and birds 543 



Catalogue of Canadian birds, III, J. Macoun 543 



The protection of birds which are beneficial to agriculture, A. Meraz 543 



Distribution and migration of North American warblers, W. W. Cooke 543 



The yellowtail tomtit ( AcarUhiza ch rysorrhoa ) , C. French 544 



Index-catalogue of zoology, VII and VIII, C. W. Stiles and A. Hassall 544 



METEOROLOGY — CLIMATOLOGY. 



Weather and crops in Europe in 1904 544 



Meteorological observations on the Poltava experiment field, 1886-1900, W. A. 



Vlasov 544 



Meteorological work of the Ploti Experiment Station, M. Svolinsky 544 



Meteorological summary for 1903, H. Dufour and D. Valet 544 



Meteorology, P. Bonarne ,,,.......,..,, 544 



