INDEX. 



655 



Variation of gaseous spectra, 133. 

 Variations of ships' compasses, 163. 

 Varley, Mr., 117. 

 Varnish for imitating gilding, 531. 



for leather, golden, 532. 

 Vaseline, from petroleum, 534. 

 Vegetable infusions and chloroform, 366. 



physiology, ccxxii. 

 Vegetables, eftect of washing, 458. 

 Vegetation and heat, 367, 36S. 



of Amsterdam and St. Paul's 

 islands, 362. 

 Velocity of electric force, 157. 



of light, measuring the, 149. 

 Velter, Mr., ccxii. 

 Veltmann, Mr., xx. 

 Venice, Royal Institute of, 65. 

 Venioukoff, Mr., clxvii., clxix. 

 Venogradski, Mr., 8. 

 Ventilation, lvi. 

 Venus, atmosphere of, 19. 

 transit of, 52, 142. 

 visibility of, 19. 

 Vermiculites, 24S. 



Vermont Commissioners of Fisheries' He- 

 port, 411. 

 Verrill, Prof. A. E., cxxv., clxxxvi., 351, 



573. 

 Vertebrates, cxcviii. 



in the eocene lake in Mexi- 

 co, 322. 

 Vibration of a tuning-fork, 130. 

 Vibrations of membranes, 132. 

 Vicaire, Mr., 16. 

 Vidal's ebulliscope, 212. 

 Viedt,Mr.,5T5. 

 Vienna, Exposition of, 123. 

 Vierordt, Mr., lxxx. 

 Villarceau, Mr., xxx. 

 Villari, Mr., 159. 

 Villot, Mr., clxxxiv., clxxxv. 

 Vine, effect of solutions on a growing, 



366. 

 Vinson, Mr. Julien, cliv., cxc. 

 Violacein, a new blue dye, 527. 

 Violle, Mr., xxiv., liii., 16, 17, 18. 

 Violincello, wolf in the, 179. 

 Virchow, Prof., clxi., clxvii., clxix., 356. 

 Virginia Fish Commission, 435. 

 Vogel, Mr., xxviii., lxx., xcv., 9, 23, 375, 



446, 517. 

 Vohl, Dr., 384, 526, 544, 564. 

 Voigt, Mr., 175, 322. 

 Voit, Mr., ccxxiii. 



Volcanic phenomena in Iceland, 67. 

 Volcanoes in Iceland, 93. 

 Volga, physical peculiarities of, 255. 

 Volhard, Mr., lxxx. 



Voltaic and factional electricities, differ- 

 ences of, 160. 

 Vom Rath, Mr., xcvii. 

 Von Diicker, Dr., 329. 

 Von Wullerstorff-Urbair, Vice -Admiral, 



32. 

 Voting-machine, electrical, 198. 

 Vulcanizing caoutchouc, 539. 

 Vnlpes fulvus in Switzerland, 327. 

 Vultur umbrosus, cciii. 



W. 



Wadleigh, Mr., 410. 



Wagner & Savtzeff, Messrs., lxxxiv. 



Mr., 41. 



Prof. A., 416. 



Wake, Mr. Staniland, clxxii. 

 Waldeck, Baron J. F. de, 596. 

 Walden, Viscount, ccvi. 

 Walhouse, Mr. J., clxviii. 

 Walker, Colonel, 252. 

 Francis, 596. 

 Walker's rolling cars, 46S. 

 Wallich, Dr., cxlvi. 

 Walnut, imitation of, 530. 

 Waltenhofer, Prof., 136. 

 Walters, Mr., 465. 

 Wapplerite, 244. 

 Ward, Mr., cviii. 



Mr. J. Clifton, cxlii. 

 Mr. L.F.,293. 

 Warren, General G. K., 476. 

 Washing muslin, cambric, etc., 456. 

 of vegetables, effect of, 45S. 

 woolen clothing, 455. 

 Washing-machine, Bohlken's, 452. 

 Washington City Market, fish in, 436. 

 Gaslight Company, 442. 

 Naval Observatory, xxxii. 

 Water, compressibility of, 145. 



for cities, selection of, 567. 



in European rivers, decrease of, 



255. 

 of crystallization, 212. 

 Water-coolers, cover for, 45S. 



-glass and sandstone, ccxc. 



-pipes, preventing the bursting by 



frost, 456. 

 -proof life-saving dress, 444. 

 -proofing boots, 523. 

 Watson & Co., Messrs., 431. 

 Lieutenant, cxxxi. 

 Mi\ Sereno, ccxix. 

 Prof. James C, 54. 

 Watts, Dr., 349. 

 Mr., lxv. 



Mr. William L., 113. 

 Wave surfaces in optics, 140. 

 Waves as a motor-power, 505. 

 photographing the, 103. 

 Weapons, efficiency of ancient, 328. 

 Weather charts, daily, 113. 



the, and colliery explosions, 114. 

 Weber, Dr. H. Friedrich, 213. 

 Websk}', Mr., xcvii. 

 Webster, Rev. Wentworth, clviii. 



Thomas, 596. 

 Wegler, Mr., 535. 

 Weights, normal, cclxxxix. 

 Weiuhold, Mr.,191. 

 Weisbach, Mr. A., clxii., 1S7. 

 Weiske, Mr., xc, ccxxii. 

 Weiskopf, Mr. Paul, 526. 

 Weismann, Prof., cxciv. 

 Weith, Mr., xci. 

 Welch, Dr., clxxxvi. 



Mr. William, 411. 

 Wei don process, cclxxx. 

 Welger,Mr.,5l8. 

 Wells, Mr. Samuel, cxxxvi. 

 Wenham, Mr., cxxxv., 188. 

 Western Territories, fossil flora of, 364. 

 Westminster aquarium, new, 422. 

 Wetherby, Mr., cxcvii. 

 Wex, Mr. Gustave, 101, 255. 

 Weyprecht, Lieutenant, xxxv., 95. 

 Wharton, Capt. W. J. L., cxviii. 

 Wheatstone, Sir Charles, 596. 

 Wheeler, Lieutenant George M., cxxiii., 

 65, 246, 293, 297, 305, 322, 342. 



