( it ) 



malcua, which render it difagreeable to the tafte, 

 and promote its putrefadlion. If it be kept in 

 wooden vefTels, it will foon ftink, and become un- 

 fit for ufe J and then, if it be viewed with a mi^ 

 crofcoptf, it will be found to contain an amazing 

 number of various animakula j and particularly 

 thofe, which, from their form and motion, are 

 called the wheel animals*. Thefe animakula 

 are fuppofed to be the chief caufe of the water's 

 putrefa6lion. 



Rain water is a little hard, when it firfl falls; 

 but in two or three days it becomes perfe<5lly 

 foft. 



The rain, which falls through the fmoke pV ^ 

 large towns, is rendered foul and black; moree- 

 ipecially if it be colle6led, as it generally is, from 

 the roofs of houfes ; v/hen it brings with it a great 

 many particles of foot, which give it a very dif- 

 agreeable tafle and colour. Where the tiles are 

 blackened by the fmoke of glafs-houfes, &c. the 



* Baker's Mifcrofcope made eafy, p. ^t,* Employment 

 for theMicrofcope, p. 295. 



