XVI CO^'TENTS. 



On the Results of the most recent Experiments on the conducting 

 power for Heat of different Soils. By Professor Forbes, . *343 



On the Cultivation of the Sugar Cane in Spain. Ej Dr Traill, . *34:6 



On the Theory of the parallel Roads in the Glens of Lochaber. 

 By Sir G. S. Mackenzie, Bart, ..... *343 



On the Results obtained with different forms of Rain-Gauges. By 

 Joseph Atkinson, Esq. Commuicated by David Milne, Esq., *350 



On the Identity of the Animal Matters which form the Basis of the 

 Animal Fluids and Solids. By James Stark, M.D., . . 353 



On the Parasitic Fungi found growing on the Bodies of Living 

 Animals. By John Hughes Bennett, M.D. Communicated by 

 Dr Graham, ....-•• 356 



On the Action of Water on Lead. By Dr Christison, . . 353 



On the Necessity of the Sense of iMuscular Action to the full exer- 

 cise of the Organs of the Senses. By Sir CTiarles Bell, K.H., 361 



Geological Notes on the Alps of Dauphine. By Professor Forbes. 

 Part L, 363. Part II., . . " . . .365 



On the most recent Disturbance of the Crust of the Earth in re- 

 spect to its suggesting a Hypothesis to account for the Origin of 

 Glaciers. By Sir G. S. Mackenzie, Bart., . . . 361- 



On a new Species of British Grass of the Genus Holcus, and Ob- 

 servations on some of the more closely allied species of Grasses 

 found in the neighbourhood of Edinburgh. By Richard Pamell, 



M.D., 367 



On the ultimate Secreting Structure of Animals. By John Goodsir, 

 Esq. Communicated by Professor Syme, . . . 369 



On the Theoretical Investigation of the absolute intensity of Inter- 

 fering Light. By Professor Kelland, .... 371 



On the Quarantine Classification of Substances with a view to the 

 prevention of Plague. By John Davy, M.D. , . . . 372 



Results of Experiments on the Specific Heat of Certain Rocks. 

 Bv M. Regnault of Paris. Communicated by the Secretary, . 373 



On the effect of Snow in apparently increasing the Force of Solar 

 Radiation. By Professor Forbes, .... 371 



On the Structure, Formation, and Movement of Glaciers ; and the 

 probable cause of their former extension and subsequent disap- 

 pearance. By James Stark, M.D., .... 375 



On Plairue, in relation to the question of its Nature, whether or 

 not a Contagious Disease. By John Davy, M.D., . . 3S0 



Analysis of two new ^Minerals of the Zeolite Family. By Thomas 

 Anderson. M.D. Communicated by Dr Christison, . . 381 



Dr Christison exhibited specimens from the Government Superin- 

 tendent of Tea Culture in Assam, illustrating the several ages at 

 which the leaves of the Assam and China Tea Plants are used for 

 making the different commercial varieties of Black and GreenTea, 382 



On the construction of a new Music Hall. By Sir George S. Mac- 

 kenzie, Bart., ....... 3S3 



On the Geology of Roxburghshire. Part I. By David Milne, 

 Esq., 383. Part II., . . • • • .399 



