INDEX. 



[The Roman Letters refer to the Summary at the beginning of the Volume.] 



eolu- 



Abbe, Prof., xl., 67. 



Abbe, Prof. (Jena), cxxxvii., 136. 



Abbot, Dr. C. C, 339. 



Abel, Prof., 479, 4SS. 



Abercrombie, Hou. Ralph, 104. 



Abuey, Capt., 140. 



Absorption and fluorescence, 170. 



of ammonia, etc., from 



tionsof the soil, 3S3. 

 of hydrogen by metals, 208. 

 phenomena, new, 141. 

 Accidental or subjective colors, 189. 

 Acetate of ammonia as a preservative, 446. 

 Acid in the gastric juice, 221, 315. 



removal from the soil, 3S0. 

 Acids, action of weak, 232. 

 Acipenser ruthenus, 352. 

 Acoustics, xlix. 

 Adam, Mr. Lucien, cliii. 

 Adami, C. Ludwig, 591. 

 Adams, Capt., 439. 

 Mr., lxix. 

 Adaptation of screw propulsion, new, 



504. 

 Adhesion, laws of apparent, 121. 



of locomotives to the tracks, 

 504. 

 Adirondack plateau, hydraulics of, 478. 



survey, 260. 

 Advances in photography, 517. 

 Aeby, Prof., 314. 

 Aerial navigation, 502. 

 Aerolites, origin of, 21. 

 Affinity, chemical, 211. 

 Africa, cxxix., clxiii., clxvii. 



opening the interior of, ccli. 

 Agaric, male and female organs in, ccxii. 



resin in, 371. 

 Agassiz, Mr. Alexander, 581. 



M'Crady, and Fritz Muller, 

 Messrs., 34S. 

 Age of the crystalline rocks of the Appala- 

 chians, 230. 

 Agricultural text-books, rewards for, 3S0. 

 Agriculture and rural economy, ccxx., 379. 

 Air, action of, in certain cases, 570. 

 and oxygen for divers, 470. 

 diffusion between dry and moist, 120. 

 flow of, through orifices, 1S6. 

 temperature of, xxxviii. 

 Airy, Prof., 41, 51. 

 Aitken, Mr. W. C, 591. 

 Alaska Commercial Company, cli. 



Icelandish Commission to, 576. 

 Albertis, Dr., 33S. 

 Albumen for printing, cclxxxv. 



in urine, picric acid a test for, 

 56S. 

 Albuminoids of the seed, transfer into the 

 plautlets, 365. 



Alcohol, detection of fusel-oil in, 560. 



in wine, etc., to determine, 212. 

 poisonous properties of, 559. 

 preparation of absolute, 538. 

 Alcoholic preparations, restoring their red 



color, 312. 

 Aleau and Vetillart, Messrs., 541. 

 "Alert" and "Discovery," English expedi- 

 tion, cxix. 

 Aleurites triloba, oil from, 534. 

 Aleutians and North Pacific, tides of, 



70. 

 Alexander, Prof. J. IT., 1S1. 

 Algse, list of North American, 363. 

 Alix, Mr., cciv. 



Alleghany City, observatory at, 10. 

 Allen, Mr., 139. 



Mr. J. A., ccix. 

 Allman, Prof., clxxix. 

 Alloy, new silver-like, 537. 

 Allport, Mr., 419. 

 Al Sufi, Persian astronomer, xxx. 

 Aluminium electrodes, property of, 196. 



plating, 537. 

 Amber-yellow glass, 517. 

 America, clxiv. 



American and Accadian languages com- 

 pared, 330. 

 Fish - culturists' Association, 

 585. 

 Association, 

 report and 

 meeting of, 

 412. 

 forest trees, work on, 377. 

 Palestine exploration, cxxix. 

 Society of Civil Engineers, 



cclxvi. 

 turkey, introduction of, 354. 

 Amherst Agricultural College, 381. 

 Amiote, Father, 203. 

 Ammen, Commodore Daniel, ccxlix. 

 Ammonia, absorption by solutions of the 

 soil, 3S3. 

 on the colors of flowers, 376. 

 Ammonia-water for washing, 455. 

 Ammonites, clxxxii. 

 Ammonium and its derivatives, 224. 



sulphocyanate in soil, ccxxii. 

 Amor j% Mr., lxxiii. 

 Ampere theory of magnets, Ixxi. 

 Amphiaxus, cxcix. 

 Amsler's planimeter for meteorological 



calculations, 79. 

 Amsterdam and St. Paul's Islands, vegeta- 

 tion of, 362. 

 Amulets, cranial, 332. 

 Anaemia, pernicious, 564. 

 Anaesthesia from chloral, 563. 

 Analyses of fertilizers, 382. 



