53] 



VOLUMES XXI-XXX. 



549 



Whitney, J. D., the Azoic system and its 



subdivisions, viii, 313. 

 Whittlesey, C, preglacial channel of Ea- 

 gle River, ix, 392. 

 Wiedersheim, R., Anatomie der Wirbel- 

 thiere, iv, 478. 



Lehrbuch der vergleichenden Anat- 

 omie. vi, 414. 

 Wiik, P. J., Mineral Karakteristik, iii, 69. 

 Wilder, B. G., Brain of the Cat, iii, 160. 



Anatomical Technology, v, 316. 

 Wilkinson, E., native mercury in Louis- 

 iana, ix, 280. 

 Williams, A., Mineral Resources of the 



United States, vi, 414; vii, 75. 

 Williams, G. H., paramorphosis of py- 

 roxene to hornblende, viii, 259. 

 metamorphism, viii, 392. 

 cleavage in American sphene, ix, 

 486. 

 Williams, H. S., Proetus longicaudus, i, 

 156. 



channel-fillings in Devonian shales, 

 i, 318. 



fauna of the Chemung group, v, 97. 

 Lime Creek beds of Iowa, v, 311. 

 Limuloid crustacean from the De- 

 vonian, xxx. 45. 



classification of the Upper Devon- 

 ian, xxx, 316. 



Life History of Spirifer lsevis, ii, 1 53. 

 Williams, S. G., dip of Tully limestone, 

 vi, 303. 



gypsum deposits in New York, xxx, 

 212. 

 Wilson, E. B., on Pycnogonida, ii, 412, 

 413. 



Development of Renilla, ix, 76. 

 Wilson, E. L, Photographies, ii, 73. 

 Wilson, H. C.j Report of Cincinnati Ob- 

 servatory, xxx, 404. 

 Wilson, W. P., respiration of plants, iii, 



423. ' 

 Winchell, A., James Craig Watson,.i, 62. 

 geology of Ann Arbor, xxx, 315. 

 notes on papers at American Asso- 

 ciation, xxx, 315. 



Coenostroma and Iclioslroma, xxx, 

 317. 



trend and crustal surplusage, xxx, 

 417. 

 Winchell, N. K, Dall's observations on 

 arctic ice, i, 358. 



clays making cream-colored bricks, 

 iii, 64. 



sandstones, Taquamenon Bay, ix, 



339. 



redquartzitesof Minnesota,xxx,316. 



Minnesota Geological Reports, iii, 



62; v, 88, 155; viii, 155, 316, 472; 



ix, 68; xxx, 396, 



Winkler, analysis of herderite, viii, 318. 

 Winter, G-., Rabenhorst's Kryptogamen- 



Flora, i, 507. 

 Winwood, H. fL, Cambrian or Primor- 

 dial rocks, British Columbia, xxx, 79. 

 Wires, change of temperature from me- 

 chanical strains in, iii, 321. 

 Wisconsin, Archaean in, Irving, ix, 237. 

 geological reports, vi, 483; vii, 146. 

 geology of, vii, 146. 

 hornblende of, Irving, vi, 27 ; vii. 

 130. 



Milwaukee clays and bricks, iv, 154. 

 Potsdam sandstones of, iii, 257 ; iv, 

 47; v, 401 ; vii, 463. 

 Wittrock, Y. B., Erythreete Exsiccatse, 



vii, 495. 

 Woeikof, A., mean annual rain-fall, iii, 

 341. 



Glacial-era climate, iii, 417. 

 Wood, S. V., cause of the Glacial period, 



vi, 150, 244. 

 Wood, see Botany. 

 Woodward, R. S., variations in length of 



bars at freezing poirit, v, 448. 

 Wooster, L., G. transition from copper- 

 bearing series to Potsdam, vii, 463. 

 Worcester, C. P., vapor densities, vi, 144. 

 Woronin, Beitrag zur Kenntniss der Usti- 



lagiueen, iv, 73. 

 Worthen, A. H., Quaternary of Illinois, 

 xxx, 315. 



geodized fossils, xxx, 376. 

 Illinois Geological Report, vi, 414, 

 483. 

 Wortman, J. L., notice of Cope's Tertiary 



Yertebrata, xxx, 295. 

 Wright, A. W., gases in smoky quartz, 

 i, 209. 



polarization of the corona, i, 334. 



of light from comet b, 1881, 

 ii, 142. 



polariscopic observations of comet 

 c, 1881, ii, 372. 



distillation of mercury in vacuo, ii, 

 479. 

 Wright, G. F., date of Glacial era, i, 120. 

 glaciated area of Ohio, vi, 44. 

 southern limit of the glacier, vi, 

 326. 



the glacial boundary in Ohio, etc., 

 vii, 410. 



Niagara River and the glacial peri- 

 od, viii, 32. 



Studies in Science and Religion, iv, 

 77. 

 Wright, T. W.. Adjustment of Observa- 

 tions, viii, 405. 



New Form of Primary Base Appa- 

 ratus, viii, 479. 

 Wurtz, A. D., Atomic Theory, i, 337, 



