486 



Forbes (Professor) on the mathematical 

 form of the Grothic pendant, 111. 



on an expression for the effort 



required to ascend planes of different 

 inclinations, 149. 



on the result of experiments on 



the weight, &c., of above 800 indivi- 

 duals, 160. 



Discussion of one year's obser- 

 vations of thermometers sunk to dif- 

 ferent depths in different localities in 

 the neighbourhood of Edinburgh, 



on the results of the most recent 



e.xperiments on the conducting power 

 for heat of different soils, *343. 



on the diminution of temperature 



■with height in the atmosphere, at 

 different seasons of the year, 259. 



on an intermitting brine spring 



discharging carbonic acid gas, near 

 Kissingen, in Bavaria, 233. 



on the colour of steam under 



certain oircum=tances, 2+2. 



on the colours of the atmosphere , 



considered with reference to a paper 

 " on the colour of steam under cer- 

 tain circumstances," 244. 



on a new method of shewing the 



unequal expansion of crystals, 259. 



A brief notice of the aerolite 



seen to fall in Juvinas, 292. 



on an optical illusion giving the 



idea of an inversion of perspective in 

 viewing objects through a telescope, 

 296. 



Contributions to optical meteor- 

 ology, 324. 



on the theory and construction 



of a seismometer, 337. 



on the effect of snow in apparent- 

 ly increasing the force of "Solar radia- 

 tion, 374. 



on the determination of heights 



by the temperature of boiling water, 

 412. 



on a peculiar structure in the ice 



of the glaciers, 332. 



papers on glaciers, No. 1 , 406. 



No. 2, 409. 



No. 3, 414. 



Farther observations on gla- 

 ciers, 465. 



Keith Prize awarded to, for his 



papers on glaciers, 465. 



(Sir John S.) on the sea-level of 



the Neapolitan coast, 331. 



Fossil fishes, on the, of the limestone of 

 Burdiehouse, 72. 



observations on the, lately 



found in Orkney, 37. 



shells, collection of, presented by 



Chevalier Michelotti, 300. 



tree, on the structure, position, 



and other particulars of a, found in 

 Craigleith quarry. 47. 



vegetables of the sandstone of 



Ayrshire, 448. 



Fringes, coloured, on a new species of, 

 developed between certain pieces of 



plate glass, exhibiting a new variety 



of polarization, 31. 

 Fromberg (P. F. H.) on the cellular 



fibre, and the incrusting matter of 



plants, 454. 

 Fungi, parasitic, on the, found growing 



on the bodies of li^ang animals, 356. 



Gamboge, on the soui'ces of the differ- 

 ent kinds of, 123. 



on the botanic origin of, 123. 



Geology of Roxburghshire, 383 and 399. 



Glaciers, origin of, 364. 



on a peculiar structure in the 



ice of the, 332. 



on the structure, formation, 



and movement of, 375. 



papers on, No. 1, 406. 



papers on. No. 2, 409. 



papers on, No. 3, 414. 



farther observations on, 465. 



Glands, on the structure of the lympha- 

 tic, 411. 



Glen-Roy, on the parallel roads of, Part 

 i., 334 ; Part ii., 335. 



Goodsir (Harry D. S.) on the develop- 

 ment, structure, and economy of the 

 acejihalocysts of authors, 466. 



(John) on the mode in which 



musket-balls, and other foreign bodies, 

 become enclosed in the tusk of the 

 elephant, 318. 



on the anatomy of the 



Amphioxus lanceolatus of Yarrell, 

 344. 



on the ultimate secret- 

 ing structure of animals, 369. 



on the anatomy of the 



human placenta, 407. 



on the structure of the 



Ij'mphatic glands, 411. 



Gottland, geology of, 236. 



Graham (Dr Robert) on the botanic 

 origin of gamboge, 123. 



(Thomas) on phosphuretted 



hydrogen gas, 70. 



on water as a consti- 

 tuent of salts, 79. 



Gi'ass, on a new species of the genus 

 Holcus, 367. 



Green (George). Researches on the vi- 

 brations of pendulums in fluid me- 

 diums, 36. 



Greenock (Right Hon. Lord). General 

 view of the phenomena displayed in 

 the neighbourhood of Edinburgh by 

 the igneous rocks, in their relations 

 with the secondary strata, 35. 



General remarks on the coal 



formation of the great valley of the 

 Scottish Lowlands, 74. 



Greenockite, on the optical properties 

 of, 362. 



Gregory (D. F.) on the real nature of 

 symbolical algebra, 217. 



(Dr W.) Experiments and ob- 

 servations on the arterialization of the 

 blood, 20. 



Notice of some recent 



discoveries in organic chemistry, 47. 



