i66 EXPERIMENTS 



towards each other ; but this motion was fo floWy 

 as to be hardly.perceptible. Two or three hours 

 after, the globules feemed to be diminiflied in 

 fize ; their motion was more fenfible ; and they 

 turned upon their centres. Though their trem- 

 bhng was more apparent than their progreffive 

 motion ; yet they phiinly changed places in an 

 irregular manner, with refpedt to each other. 

 In fix or feven hours, the globules were become 

 fmaller, and their adivity was greater. Their 

 number appeared to be great, and all their mo- 

 tions were fenfible. Next day there was a pro- 

 digious multitude of moving globules, and they 

 were at leaft three times fmaller than at firft. 1 

 continued my obfervations for eight days, and I 

 perceived that feveral of the globules joined j 

 and, though all motion ceafed after this union, 

 it appeared to be fuperhcial and accidental only. 

 Some of them were larger, and others lefs ; 

 though moft of them were fpherical, fome were 

 oval, and others cylindrical. The largell were 

 moft tranfparent ; and the. fmalleft were almoft 

 black. This difference could proceed from no 

 accident in the light ; for they were always of 

 the lame colour, whatever was their fituation i 

 The motion of the fmall globules was likewife 

 more rapid. The whole gradually diminiflied 

 in fize ; fo that, on the eighth day, they were 

 fo fmall, that it was with the utmoft difficulty 

 1 could diftinguifh them, and at laft they total- 

 ly dilappeared. 



E X F E R. 



