:38J^ 



INDEX. 



Sunm-cngine, notice of Perkins's, 338. 

 Steam navigation, on its progress in In- 

 dia, 335. : 

 .Steam-boilers, on the bursting of, 335. 

 Stereometer, Captain Say's, revived by 



Professor Leslie, 333. 

 Struve, M. on Saturn and Jupiter, 17« r >. 

 Sugar produced by a pine in North Ame- 

 rica, 1 1 4. 

 Suspension bridges, on the- mathematical 

 theory of, 169 — failure of one at Paris, 

 260. 

 Sydney, on the mean temperature of, 226. 

 Taylor, Mr, on the bursting of steam. 



boilers, 335 

 Temperature, mean, of the equator, 117, 



1 38. 

 Thenardite, a new mineral, 182. 

 Tripe, Mr, on Haytorite, 297- 

 Turner, Dr, on Haidingerite, a new mine- 

 ral, 317— his Elements of Chemistry 

 analyzed, 338. 

 Warburton, Mr, on the sea serpent, 126. 

 Wardrop, Mr on the recovery of sight by 



an artificial pupil, 20. 

 Water, on a substance which inflames in 



contact with it, 355. 

 Water wheels, on a new method of work- 

 ing them, 164. 



Whewell, Kev. W. on a notation for 

 crystalline forms, 1. 



Wilson, Capt. J. P. his magnetical expe- 

 riments at China, and St Helena, 3 IK. 



Wine, how to restore it when turned, 

 163. 



Wohler, Dr, his analysis of pyrochlore, 

 359. 



Wolfram, analysis of a variety of, 363. 



Wollner, l)r, on the different primitive 

 forms of salts with different solvents 

 289. 



Vibrating bodies, on their modes of divi- 

 sion, 204. 



Volcano on a large extinct one at Hawaii, 

 187 — Eruption of one in Huararai, 

 373 — Miniature ones in America, 373. 



Voltaic conductor, effect of a moving disc 

 on one, 348. 



Voysey H. N. Esq. on the diamond mines 

 of Southern India, 97. 



Ybera, the lake of described, 219 



Zimmerman's safety gun, 337. 



Zinkenite, a new mineral, 17 — analysis 

 of, 358. 



Zirknitz, on the lake of, 223. 



Zoology of the Falkland Islands, 321. 



Zoological collections, 328. 



DESCRIPTION OF PLATES IN VOL. VI. 



PLATE I. Fig. 1. Illustrates Mr WhewelTs paper on the analysis of Crystalline 

 Forms. 

 Fig. 2 Is Professor Barlow's apparatus for the experiments on the 



Magnetism of Rotation. 

 Figs. 3, 4, 5, Represent the Crystals of Zinkenite. 

 Figs. 6, 7, 8, Represent Mr Robison's method of fixing Painted Glass. 

 Fig 9. Is a diagram illustrative of Mr D. Gilbert's paper on Suspen- 

 sion Bridges. 

 Fig. 10. Represents the Sea Serpent. 



Fig. 11, 12, 13, 11, Represent Dr Buchanan's new Air-Pump. 

 PLATE II. Represents the Phenomena of the Comet which is supposed to revolve 



on its axis, as observed by Mr Dunlop. 

 PLATE III. The Map of the recent discoveries of Captain Parry and Captain 



Franklin. 

 PLATE IV. Figs. I, 2, Are Fossil Horns found near Harborough. 



Fig. 3. Shows Mr James Nasmyth's Instrument for measuring ex. 



pansions. 

 Fig. 4. Illustrates Mr Robison's account of the failure of the Suspen- 

 4 sion Bridge at Paris. 



Figs. 5, 6, 7, Represent Dr Brewster's Improvement on the Nautical 



Eye- tube. 

 Fig. 8. Shows Mr Deas Thomson's method of heating a Bath. 

 Fig. 9. Is a Crystal of Haytorite. 

 Fig. 10. Is a Crystal of Mohsite. 

 PLATE V. Illustrates M. Savart's paper on the modes of division of Vibrating 



Bodies. 

 PLATE VI. Illustrates M. Haidinger's paper on the regular composition of Crys- 

 tallized Bodies. 



1 



