INDEX TO YOLUME X* 



Abbot, C. G., observations at Wash- 

 ington Astropbysical Laboratory, 

 470. 



Absorption of gases by glass powder, 

 Miilfarth, 462. 



Academy, National, meeting at Prov- 

 idence, 472. 



Activity, Optical, and Cbemical Com- 

 position, Landolt, 76. 



Adams, F. D., flow of marble under 

 pressure, 401. 



Alternating Currents, joint trans- 

 mission witb direct, Bedell, 163. 



— measurements witb, Rowland-Potts, 

 91. 



Alternator, string, Honda and 



Sbimizu, 64. 

 Andrews, C. W., geology, etc., of 



Cbristmas Island, 79. 

 Association, American, meeting at 



New York, 169. 



— Britisb, meeting at Bradford, 169. 

 Atmospheric electricity, variation in, 



Cbauveau, 161. 



B 

 Baffin Land, Lower Silurian fauna, 



Schuchert, 81. 

 Barus, C, torsional magnetostric- 

 tion, 407. 

 Bedell, F., joint transmission of di- 

 rect and alternating currents, 163. 

 Beecher, C. E., restoration of Stylo- 



nurus lacoanus, 145. 

 Birds of N. America, Cory, 89. 

 BOTANY. 



Carex of oriental Asia, Francbet, 



84. 

 Carices from Alaska, Holm, 266. 

 Cyperaceae, studies in, No. xiii, 



Holm, 33 ; No. xiv, Holm, 266. 

 Dicotyledones, anatomy, Solereder, 



85. 

 Maidenhair tree (Gingko), Seward, 

 323. 



Brazil, schists of gold regions, Derby, 



207. 

 British Museum, catalogues, 170. 

 Browning, P. E., separation of 



nickel from cobalt, 316. 



energy of cathode 



Geol. Survey, Summary 

 for 1899, 165; vol. xi, 



Cady, W. G. 



rays, 1 

 Canada, 



report 

 399. 



— report on minerals, Hoffmann, 

 404. 



Cathode Rays, effect on conductivity 

 of gases, McLennan, 319. 



— energy of, Cady, 1. 



— and X-light, Rollins, 382. 



CHEMICAL WORKS: 



Elementary Inorganic Chemistry, 

 Ostwald, 394. 



— Inorganic Chemistry, Shenstone, 

 395. 



Lecons de Chimie Physique, Van't 



Hoff, 461. 

 Physikalisch-chemische Propadeu- 



tik, Griesbach, 461. 

 School Chemistry, Waddell, 461. 



CHEMISTRY. 



Acetylene, products of explosion, 



Mixter, 299. 

 Arsenic acid, iodometric estimation, 



Gooch and Morris, 151. 

 Barium, radio-active, Lengyel, 74 ; 



artificial, Debierne, 393 ; atomic 



weight, Curie, 392. 



— and polonium, 460. 



Caesium, properties of, Eckhardt 



and Graefe, 75. 

 Carbon monoxide poisoning, Sachs, 



395. 



— trivalent, Gomberg, 458. 

 Chromite, method of decomposing, 



Fieber, 76. 



* This Index contains the general heads, Botany, Chemistry (incl. chem. physics), Geology, 

 Minerals, Obituary, Rocks, and under each the titles of Articles referring thereto ara 

 mentioned. 



