BALCH-BATRACH 



GENERAL INDEX 



Balch, Tliomas Willing- (continued). 



proposed International Tribunal 



of Arbitration of 1623, 46, 302. 



Baldwin, Matthias W., obituar}- no- 

 tice of, 10, 279. 



Balloons, exploration of the upper 

 air by kites and, 48, 8. 



Bancker, Charles Nicoll, obituary 

 notice of, 11, 85. 



Bar, mythical compounds of, 10, 137. 



Barbadoes, cyclical rainfall at, 14, 



195- 



Barite, 24, 434. 



Barium, extraction of, i, 130. 



Barker, George F., Draper Memorial 

 photographs of stellar spectra, 24, 

 166. 



electrical progress since 1743, 



32, 104. 



• measurement of electromotive 



force, 20, 649. 



-new vertical lantern galvanom- 

 eter, 14, 440. 



obituary notice of, 50, xiii. 



, -of Henry Draper, 20, 



656. 



. of Frederick Augustus 



Genth, 40, x. 



solar eclipse of July 29. 1878, 



18, 103. 



Barnard, E. E., photographic obser- 

 vations of Daniel's comet, 49, 3. 



results of astronomical photog- 

 raphy, 46, 417. 



— — self-luminous night-haze, 50, 

 246. 



Barometer, Becker's aneroid, 7, 342. 



— diurnal variations of the, 9, 283. 



— high, of February 10 and 11, 1867, 

 10, 329. 



— improvements in the hypsomctrical, 

 20, 604. 



Barrett. O., Jr., list of elevations 

 in Indiana Co., Pa., 17, 145. 



Bars, dynamic action of the ocean in 

 building, 26, T4('). 



Bartlett, William H. C, comet of 

 1843, 3, 152. 



instruments used at West Point, 



N. Y., 3, 151- 



Barton, Benjamin Smith, pernicious 

 insects of North America, 22, 369. 



Barus, Carl, adjustment for the plane 

 grating similar to Rowland's 

 method for the concave grating, 

 48, 166. 



distribution of nuclei in dust- 

 free wet-air, 46, 70. 



election method of standardizing 



the coronas of cloudy condensation, 

 48, 177- 



— ■ — electrometric measurement of 

 the voltaic potential difference be- 

 tween the two conductors of a con- 

 denser containing a highly ionized 

 medium, 48, 189. 



elliptic interference with reflect- 

 ing grating, 50, 125. 



transpiration of air through a 



partition of water, 50, 117. 



Base apparatus, 4, 368. 



Basic lines, harmonies of Lockyer's, 



18, 224. 



Basin, tertiary strata of the great, 



19, 60. 



Bates-Miiller hypothesis. 43, 393. 

 Bathmodon, 12, 417. 

 Batrachia, 12, 41 ; 16, 573, 666; 17, 

 505; 22, 405; 24, 273. 



— of the coal measures of Ohio, 16, 

 573: 22, 405. 



— and reptilia, synopsis of the, 

 obtained in the Province of Mato 

 Grosso, Brazil, 24, 44. 



-of Costa Rica, 31, 323. 



Batrachian fauna of the Carbonifer- 

 ous of Linton. 12, 177. 



— footprints in anthracite, 17, 716. 

 Batrachians and Reptiles, catalogue 



of the species of, in a collection 

 made at Pebas, Upper Amazon, 

 23, Q4- 



/. 



