D£SID£RATA, ETC. X¥ 



Inquiry into the Validity of a Method recently proposed by 

 George B. Jerrard, Esq., for Transforming and Resolving Equa- 

 tions of Elevated Degrees : undertaken at the request of the 

 Association by Professor Sir W. R. Hamilton. 



The following Reports and Continuations of Reports have 

 been undertaken to be draivn up at the request of the Asso- 

 ciation. 



On the progress of Electro-chemistry and Electro-magnetism, 

 so far as regards the experimental part of the subject, by P. M. 

 Roget, M.D., Sec. R.S. 



On the Connection of Electricity and Magnetism, by S. H. 

 Christie, F.R.S., &c. 



On the state of know^ledge on the Phsenomeua of Sound, by 

 the Rev. Robert Willis, M.A., F.R.S. 



On the state of our knowledge respecting the relative level of 

 Land and Sea, and the waste and extension of the land on the 

 east coast of England, by R. Stevenson, Engineer to tlie North- 

 ern Lighthouses, Edinburgh. 



On the Botany of North America, by Jacob Greene, M.D., 

 and Sir W. J. Hooker, M.D., Professor of Botany, Glasgow. 



On the Geographical Distribution of Lisects, and particularly 

 the order Coleoptera, by J. Wilson, F.R.S.E. 



On the influence of Climate upon Vegetation, , by the Rev. 

 J. S. Henslow, M.A., F.L.S., Professor of Botany, Cambridge. 



On circumstances in Vegetation influencing the Medicinal 

 Virtues of Plants, by R. Christison, M.D., &c. 



On Salts, by Professor Graham, 



On the progress of Medical Science in Germany, by Dr. 

 Graves. 



On the Differential and Integral Calculus, by the Rev. G. 

 Peacock, M.A., F.R.S. 



On the present state of our knowledge of the Phsenomena of 

 Terrestrial Magnetism, by Captain Sabine, F.R.S. 



On the Geology of North America, by H. D. Rogers, F.G.S., 

 Professor of Geology, Philadelphia. 



On the Mineral Riches of Great Britain, by John Taylor, 

 F.R.S. G.S. 



On the Methods of Printing for the Blind, by the Rev. Wm. 

 Taylor, F.R.S. 



On the Statistics of Dukhun, by Lieut.-Colonel Sykes, F.R.S. 



On the Physical and Chemical Properties of Dimorphous 

 Bodies, by J. F. W. Johnston, F.R.S. 



