INDEX. 



593 



CHEMISTRY— continued. 



Nitrogen, utilization of atmosphe- 

 ric, Frank, 509. 



Oxides, heat of combination of 

 acidic, Mixter, 125. 



Phosphorus in phosphor tin, Gem- 

 mell and Archbutt, 399. 



Polviodides of potassium, etc., 

 Foote and Chalker, 92. 



Potassium, estimation in animal 

 fluids, Drushel, 555. 



Eadium, see Radium. 



Urano-uranic oxide, McCoy, 521. 



Yapor densities, determination 

 Blackman, 400. 

 Civilization, Physical Basis, Heine- j 



man, 241. 

 Clark, H. L., apodous holothurians, 



100. 

 Clarke, J. M., Devonic history of 



New York, 93. 

 Clement, J. K., water in tremolite, 



101 ; new measurements with gas 



thermometer, 405. 

 Cockerell, T. D. A., Tertiary plants, 



65, 537 ; Tertiary insects, 69. 

 Continents, origin, etc., 238, 512. 

 Colorado, Florissant, Tertiary plants, 



65, 537 ; insects, 69, 76. 

 Crew, H., Principles of Mechanics, 



580. 

 Crystal Drawings, Reeks and Evans, 



584. 

 Cyanide Processes, Wilson, 576. 



Dahomey, Mission Scientifique, Hu- . 



bert, 515. 

 Daly, R. A., mechanics of igneous i 



intrusion, 17. 

 Day, A. L., new measurements with 



gas thermometer, 405. 

 Davis, W. M., Physical Geography, 



591. 

 Drushel, W. A., estimation of potas- 

 sium, 329, 555. 

 Duane W., emission of electricity 



from radium, 1 ; range of a-rays, 



465. 

 Dynamics, Ferry, 590. 



Earthquake Investigation Com- 

 mittee, Japanese, 240. 



Eddy, E. A., ester formation, etc. 

 253, 281, 296. 



Edgar, G., estimation of iron and 

 vanadium, 79 ; of chromic and van- 

 adic acid, 333. 



Electric discharge, magnetic rotation, 



Mallik, 576. 

 Electricity, emission from radium, 



Duane, 1. 



— Experimental, Searle, 580. 

 Electrons, emission from metallic 



oxides, Jentzsch, 512. 



— negative kinetic energy of, Rich- 

 ardson, 512. 



Ethnology, American, 26th Annual 



Report, 591. 

 Evolution of Forces, Le Bon, 579. 

 Extinction angles, measurement of, 



Wright, 349. 



Fernald, M. R., Gray's Botany, 518. 



Flint, G. M., gahnite, 584. 



Flora, see BOTANY. 



Florida geol. survey, 581. 



Fog chamber, standardized, Barus, 

 87 ; Thomson's constant deter- 

 mined, 324. 



Ford, W. E., orthoclase twins, 149. 



Fossil, see GEOLOGY. 



Gas thermometer, Day and Clement, 

 405. 



GEOLOGICAL REPORTS AND 

 SURVEYS. 



Canada, 239 ; Index to Reports 



1885-1906, 514. 

 Cape of Good Hope, 582. 

 Florida, 581. 

 Illinois, 166. 

 Iowa, vol. xvii, 97. 

 Maryland, vol. vi, 97. 

 New Jersey, 1907, 514. 

 United States, list of publications, 



95, 402. 

 West Australia, 166. 

 West Virginia, 581. 

 Wisconsin, 98, 582. 

 Geologische Prinzipienf ragen, Reyer, 



238. 



GEOLOGY. 



Archhelenis and Archinotis, von 



Ihering, 513. 

 Camarophorella, Hyde, 514. 

 Ceratopsia, Hatcher, 98. 

 Channels, buried, of Hudson river., 



Kemp, 301. 

 Devonic history of New York, 



Clarke, 93. 

 Fossilen Insecten, Handlirsch, 584. 

 Graptolites of New York, Ruede- 



mann, 402. 



