[ 219 3 
Should Ice machines, which being impa- 
* tient of the prefence of fluids, are agitated 
by a perpetual motion; others which 
generally remain in a flate of tran¬ 
quility, and which only are called into 
adtion under certain circumftances; others 
which are mod adtive in proportion as the 
neceflity becomes greater ; and we fhali 
likewife be witnefs to the Angular and mar¬ 
vellous example of an organ, which at the 
inftant it is affedted by a particular llimulus, 
voluntarily yields to its impulfe, for no 
mechanical caufe can produce any influence 
upon it, enlarges, and when it attains 
a certain term, which is not meafured by 
its degree of diftenfion, but by the lapf^ 
of time, contracts upon itfelf, and refumeS 
its original fhape and bulk. 
Thefe different proceffes only ferve to 
render us fenfible of the grandeur of the 
architedt, and the fublime and unbounded 
plan of his defigns. 
We 
