358 



Muscular substance of the tongue, 

 258. 



Navigation in tidal rivers, on the im- 

 provement of, 26. 



Negative quantities, Warren's doctrine 

 respecting the square root of, an 

 attempt to elucidate and apply, 

 111. 



New South Wales, on a new species 

 of manna from, 239. 



New voltaic battery of intense power, 

 239. 



Nomenclature, personal, of the Ro- 

 mans. See Romans. 



Nova Scotia, on the boulder formation 

 and superficial deposits of, 140. 



on the mode of occurrence of 



gypsum in Nova Scotia, and on its 

 probable origin, 141. 



Numbers, on the sums of the digits of, 

 49. 



Numerical harmonic ratio, on an ap- 

 plication of the laws of, to forms 

 generally, and particularly to that 

 of the human figure, 304. 



Observatory (Royal) of Edinburgh, 

 on the course of observation to be 

 pursued in future at the, 126. 



on certain anomalous devia- 

 tions of the transit instrument at the, 

 142. 



Makerstoun. See Makerstoun 



Observatory. 

 Trevandrum, observations of 



terrestrial temperature made at, 

 from May 1842 to December 1845, 

 127. 



Ocean, speculation respecting partial 

 changes of the bed of the, 114, 115. 



Oil and albumen in the animal eco- 

 nomy, on the structural relation of, 

 136. 



Oils, fixed. See Fixed Oils. 



Ores of copper, notice of two, one of 

 them a new mineral, 146. 



Organic creation, remarks on the hy- 

 pothesis of progressive development 

 in the, 130. 



colouring matters, on the ac- 

 tion of the dry gases on, 183. 



Orkney, volcanic shower in, and re- 

 cent eruption of Hecla, 56. 



Oval curves, description of, 89. 



Ovigerous capsules and spermatozoa in 

 the same individuals, of the Hydra 

 viridis, on the co-existence of, 123. 



Parallel roads of Lochaber. See Loch- 

 aber. 



Paul's (St) 2d Epistle to Timothy, an 

 attempt to show that the Claudia 

 mentioned in, was a British prin- 

 cess, 63. 



Peruvian musical instrument like the 

 ancient S5'rinx, 325. 



Phosphate of magnesia, on a new, 25. 



Phosphates of the organic alkalies, 

 note on the constitution of the, 

 148. 



Phosphoric acid from bones, on the ex- 

 traction of, 25. 



Physics, cometary, remarks on, 326. 



Picoline, a new organic base from coal- 

 tar, on the constitution and proper- 

 ties of, 94. 



Powder, on a black, which appeared on 

 the surface of Loch Dochart, on the 

 morning of 23d November 1846, 

 129. 



Probability, an attempt to compare 

 the exact and popular estimates of. 

 228. 



Probable inference, on, 288. 



Proportion, symmetric, Professor Kel- 

 lands exposition of the views of Mr 

 D. R. Hay on, 328. 



Purification and properties of chloro- 

 form. See Chloroform. 



Rain-gauge, on a simple form of, 234. 



Ramsay (Rev. E. B.) Biographical no- 

 tice of Dr Chalmers, 226. 



Rankine (W. J. M.) Abstract of a 

 paper on the hypothesis of molecu- 

 lar vortices, and its application to 

 the mechanical theory of heat, 275. 



Reflectors, metallic, for sextants, on 

 the use of, 22. 



Refracting power of the eye, 251. 



Refraction (ordinary) of light by Ice- 

 land spar. 139. 



Refractive and dispersive powers of 

 the humours of the eye, 232. 



Refractive and dispersive power of 

 chloroform, 187. 



Reid (John) JI.D. Account of a pecu- 

 liar structure found in the Vag- 

 marus Islandicus, 241. 



An account of some monstrosi- 

 ties, 267. 



Rhine and Rhone, geological notes on 

 the valleys of the, 189. 



Rings, annual, of glaciers, observations 

 on the cause of, 196. 



Rivers, tidal, improvement of naviga- 

 tion on, 26. 



Robison (John). Note regarding an 

 experiment suggested by, 244. 



(Sir John) K.H., Sec. R.S.E. 



Biographical notice of the late, 68. 



