246 Biographical Sketch of Anthony Scarpa. 



respect to the memory of the venerable Nestor of modern sur- 

 gery, to this benefactor of humanity, whose name is spoken of 

 with regret by all his fellow-citizens, and will be proudly re- 

 peated by posterity. Let us hope that within a short time, 

 friendship and gratitude will furnish us with the memoirs of 

 this illustrious man, of which he himself has left the principal 

 materials in his papers. ' <^^*ei*^;^ j, p, ^jn 



P. S, It is right to render to Caesar what belongs to Caesar. 

 I think it is my duty to say that this biographical notice is 

 principally extracted from one which has just been published 

 by Mr Chiappa, and that of Mr Carron de Villards. I owe 

 much also to a letter from my friend Professor Rusconi. 



Bihliotheque Universelle, 1832. 



REPORT OF A LECTURE ON THE CHEMISTRY OF GEOLOGY DE- 

 LIVERED AT ONE OF THE EVENING MEETINGS AT THE 

 UNIVERSITY OF LONDON, by EDWARD TuRNUM, M, D. 



F.R.S.L.E.,Sec. G.S. 



The lecturer began by explaining, that, under the title " Che- 

 mistry of Geology," he included all those geological phenomena 

 to the elucidation of which chemical principles were applicable. 

 The subject, he said, was one of great extent. He might pro- 

 ceed to consider the affinities which operated in forming the 

 crystalline rocks^of the non-fossiliferous series, — to develope the 

 several theories by which it is attempted to account for volcanic 

 action, — to show by what means the soft materials of aqueous 

 deposits were converted into solid rocks, — to trace the effects of 

 heat in modifying the appearance and nature of previously con- 

 solidated masses, — to endeavour to explain the origin of mine- 

 ral waters, — and speculate on the obscure subject of the forma- 

 tion of veins. But he would not then venture to discuss any 

 of those topics, the rather as some of them were then under in- 

 vestigation. He meant to confine his remarks to two parts of 

 the subject : First, to the causes which give rise to the disinte- 

 gration of rocks, thereby providing the materials for new, by the 

 destruction of pre-existing geological formations ; and, second- 



