ge i ile on alle ee 
you will excuse such errors as may occur in 
THE 
AMERI CAN 
JOURNAL OF SCIENCE, &e. 
—S 
TOPOGRAPHY, GEOLOGY AND MINERALOGY. 
TO PROFESSOR SILLIMAN. 
Geneva, July 19, 1819. 
Dear Sir, 
L TAKE the liberty to — you a hasty sketch of a short 
tour that I completed a few days ago, including the Vale of 
Chamouny—and an ascent to the top of Mount Blanc. As 
this latter is a journey not often made, and never before by 
an American traveller, I trust no apology «will be thought 
necessary. 
As I have suffered much both from heat lk cold, and 
am still labouring under an affection of the. -eyes and face, 
&e. As to the statement, I copy seperate made on the 
mount, and soon after my arrival in the V: 
ee oe much respect, I have the boars to bes 
—— meet 
VAN RENSSELAER. 
erwin: ae Italy iy the grand — of the Simplon, 
which, more than his victories or reverses, will contri 
to the fame of Bo a aa we an the scenery of the 
Vou. IL.....No. 1 
