C46 



INDEX. 



Dry cleaning with benzine, 434. 



with turpentine, 433. 

 Drying fabrics, Bastaert's method of, 501. 

 Duane, General, 467. 

 Dubrueil, Mr., cxlv. 

 Due de Luynes, exxiv. 

 Duchesne-Thoureau, 40S. 

 Ducleaux,Mr.,213, 541. 

 Ducrost, Abbe, exxi. 

 Dudley Observatory, xxii. 

 Duff, Mr. Grant, cxv., exxv. 

 Dufosse, Mr., exxxiii. 

 Dufour, Mr., xxx., 10, 142. 

 Duhniberg, Mr., 228. 

 Dumas, Mr., 565. 

 Duncan, Prof. P. Martin, cxlii. 

 Dunecht, private observatory at, xxiv. 

 Diinkelberg,Mr.,418. 

 Dupre, Prof. Warren, 47, 12S. 

 Dupny, Mr., 217, 290. 

 Durand, Mr., 250. 

 Duration of the sensation of sound, 175, 



196. 

 Dust, atmospheric, 22S. 

 Dyeiug with aniline black, 536. 

 Dye-stuffs, new material for,53S. 

 Dynamical and electrical units, Report on, 



125. 

 Dynamite, cellulose, 479. 

 Dyspepsia, physiology of, 56S. 



E. 



Earth currents, 172. 



observations on, 150. 

 diurnal rotation of the, xxviii. 

 strata and the composition of wa- 

 ters, 553. 

 structure of the, 219. 

 temperature of the, xxxiii. 

 Earth's crust, formation of the, 223. 



lines of elevation of the, 223. 

 diameter, contraction of the, 52. 

 magnetism, secular changes in the, 

 153. 

 Earthenware, glaze for, 512. 

 Earthquake, March 6, 1S72, in Germany, 



4S. 

 Earthquakes, xxxii. 



in New England, 48. 

 in North Carolina, 47. 

 in the Caucasus, 50. 

 East Indian serpents, venom of, 2S7. 

 River suspension bridge, excii. 

 Eastman, Prof., 20. 

 Eaton, Jr., General John, 593. 



Prof., xlii., 356. 

 Ebermayer, Mr., 77, 375. 

 Eberth,Dr., cvii. 



Ebonite, expansion by heat of, 163. 

 Eclipse, solar, of 1S74, 40. 

 Edinson, Mr. Thomas A., exeviii. 

 Edwards, Mr., 1S3. 

 Eels, in a pond in Utah, 428. 

 Egg, six centuries old, 340. 

 Eggs, cause of putrefaction of, 550. 

 decomposition of, 351. 

 freshness of, 448. 

 fungus in fresh, 357. 

 of bony fishes, structure of, 314. 

 of the silurida;, 313, 339. 

 Egypt, ethnologv of ancient, 331. 

 Egyptian blue, 536. 



cubit, length of, 2. 

 serpents, poison of, 323. 



Elastic reaction by torsion, 168. 

 Elasticity, mathematical laws of, 130. 



new method for the determi- 

 nation of, 131. 

 Elater noctilucus, cli. 

 Electric diapason, the, 134. 



illumination, improved, 429. 

 light, clxxxiii. 



improved, 160. 

 stimulation on the brain, 293. 

 Electrical action, synthesis by, 147. 

 clocks, 147. 



deposition of iron, 208. 

 phenomena in plants, 355. 

 resistance of selenium, 148. 

 Society, American, xliii. 

 Electricity, xliii. 



heat, and molecular forces, 



125. 

 on carbonic acid, 203. 

 Electro-capillary motor, 479. 



-magnets, magnetism of, 152. 

 -motograph, exeviii. 

 -stannus, 509. 

 -torsion, 16S. 

 Elements in the solar atmosphere, new, 



45. 

 Elephas antiquus, 328. 

 Elevation lines in the earth's crust, 223. 

 Elk, American, and English deer, clvii. 

 Elliot, Sir Walter, ex., cxv. 

 Elliott, Henry W., lxxxvii., exxviii., 422. 



Mr. E. B., 29. 

 Elliptic functions, tables of, xix. 

 polarization of light, 137. 

 Elodea canadensis on cane sugar, 206. 

 Eisner, Dr., 211. 

 Elwes, Mr. H. J., 341. 



Mr. N. J., exxxvii. 

 Embryology of terebratulina, 314. 



of the lemurs, 301. 

 Emsmann, Mr., xliv. 

 Enamel for cast iron, English, 535. 

 Endemann, Mr., 436. 

 Endlich, Dr. F. M., lxv., 219, 227. 

 Engineer Bureau, the, lxxvii. 

 Engineering and mechanics, excii., 459. 

 England, barometric depressions in, 89. 

 protection of rabbits in, 396. 

 Royal Agricultural Society of, 



C04. 

 testing weights iu, 5. 

 Engler and Nasse, Messrs., 203. 

 English enamel for cast iron, 535. 



sparrows, 376. 

 Engraving on copper, new process of, 523. 

 Engravings, cleaning old, 486. 

 Eutoconcha digitata, 348. 

 Eutomological Club, Cambridge, 574. 

 Eozoon controversy, the, cvi. 

 Ephesus, excavations of the temple of, 



exxiii. 

 Epsom salt and rust stains, 433. 

 Eqnus fraternus, 301. 

 Erckmann, Mr., 437. 

 Erlenmeyer and Sigel, Messrs., liv. 

 Eta Argus, nebula around, 41. 



Dracouis, xxx. 

 Ether, the molecules of, 130. 

 Ethnological explorations in Alaska, 329. 

 inquiries by the German 

 transit expeditions, 32S. 

 Ethnology, cix. 



exhibition of British, 326. 



