56 M. Charpentier on the Erratic riieiiumena of the North. 



giving in the Bihliotheque UnHcrselle de Geneve an account of 

 my Essai sur les glaciers et le terrain erratiqne da bassin die 

 Rhone * I there remarked with much satisfaction that j'ou 

 have perused that work with attention, and have completely 

 understood the ideas which it was my intention to express. 

 In fact, I think it would be impossible to prepare a better ab- 

 stract than you have published of a work Avhich, in some mea- 

 sure, is only a summary of observations. I therefore request 

 you to accept of my sincere thanks on this account, and also 

 for all the kind observations regarding me, which, on that oc- 

 casion, were dictated by your indulgent goodness. 



If all my readers had considered the subject with the same 

 attention and the same sagacity which you have brought to 



communications publislied previously to vol. xxx., but not included in our 

 former note : Vol. xviii. p. 303, Kldden on the Origin of the Erratic Blocks 

 of the North of Germany. Vol. xxiii. p. 09, Scfstrbm on the Traces of a 

 vast Ancient Flood (On osars and Jiittqiryitor), Vol. xxiv., p. 438, Von 

 Baor on the Transported Blocks of the South Coast of Finland. Vol. xxix. 

 p. 185, On the Origin of Fissui'cs in Glaciers, and on Sefstrom's Investiga- 

 tions. Vol. xxx. Y9- 160 and 284, Dr Martens on the Glaciers of Spitzbcr- 

 gen, compared Avith those of Switzerland and Norway ; p. IDJ, Dr Buckland 

 on the former existence of Glaciers in Scotland ; p. 11)9, Mr Lyoll on the 

 Geological Evidence of the former existence of Glaciers in Forfarshire; 

 p. 202, Dr Buckland on the former existence of Glaciers in the North of 

 England. Vol. xxxi. p. 38, Dr Black on the Antediluvian Congelation of 

 the Interstitial Water of Eocks ; p. 60, Captain Vetch on Icebergs, &c. ; p. 

 77, M. Eenoir on the Traces of Ancient Glaciers in Dauphiny and in 

 Northern Russia ; p. 252, M. Eobcrt on the Grooves and Furrows on the 

 Eocks of Scandinavia ; p. 253, M. Bohtlingk on the Traces of the last Ee- 

 volution in Scandinavia. Vol. xxxii. p, 76, Professor Hitchcock on Glacial 

 Action, &c., in America ; p. 84, Professor Forbes on a Ecmarkable Struc- 

 ture observed by him in the Ice of Glaciers ; p. 103, M. Buhtlingk on the 

 Scratches and Furrows observed on the Eocks of Finland ; p. 291, M. 

 Desor's Account of an Ascent of the Jungfrau. Vol. xxxiii. p. 1, Sir G. 

 Mackenzie on an Hypothesis to account for the Origin of Glaciers ; p. 30, 

 Professor Bronn on the Glacier Theory of Agassiz ; p. 104, M. de Clmr- 

 pentier on the Glaciers and Erratic Formation of the Valley of the Rhone ; 

 p. 124, Mr Murchison on the Glacial Theory ; p. 101, M. Studer on the Di- 

 luvium and Erratic Blocks of Switzerland; p. 217, Professor Agassiz on 

 the Glacial Theory and its Eecent Progress ; p. 338, Professor Forbes' Re- 

 cent Observations on Glaciers ; p. 352, Mr Darwin on the Ancient Glaciers 

 of Caernarvonshire ; p. 399, Professor Agassiz' Eecent Observations on the 

 Glacier of the Aar — Edit. 

 ■•' Jameson's Journal, vol. xxxiii. p. 104. 



