166 On the Manufacture of Italian Bonnets, &e. 
manner of filling this with gas, as in this form the instru- 
ment differs very little from the commom gasometer. 
Figure 1. 
WK B 
N. B. The upper cylinder should be as long as the lower ones ; it was by 
mistake drawn too short. 
Arr. XVIII.— On the material and manufacture of the Ital- 
ian Bonnets, and the habits and state of society of the 
manufacturers.—Extract from Chateauvieux’s Letters to 
Pictet ; made in consequence of Dr. Mitchill’s communi- 
cation on the Tuscan straw. 
CuatTeavuvievx, in his agreeable and instructive letters 
written from Italy, to Mr. Pictet in 1812 and 1813, de- 
scribes the persons who manufacture the Tuscan bonnets, 
and their state of society. In bis sixth letter, which is da- 
ted at Florence, are the following observations, (Vol. 1. p. 
96.) ‘* The road [ travelled was bordered on both sides 
by village-houses, whose distance from each other did not 
exceed one hundred paces. ‘They are built of brick, and 
the architect has bestowed upon them a justness of propor- 
tion and an elegance of form, unknown in our climates. 
They consist of a single pavillion, that has often but one 
door and two windows in front. These houses are always 
situated along the road, and separated from it by a support- 
