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found to be each Inclofed in a membrane, and to be compofed of 

 Hill fmaller filaments ; and with regard to the lize of thel'e fifliy 

 Fibres, each tingle Fibre M'as no larger than in the fmaller fifli ; 

 and indeed I have feen the Fibres in feme cod-filh, eight times the 

 fize of thofe in a whale. 



I alfo examined the component Fibres in the flefli of a moufe, a 

 ealf, and a hog, and found their formation to be the fame as be- 

 fore defcribed, namely, each furrounded with a particular mem- 

 brane, and compofed of fmaller filaments : the Fibres in the fleth 

 of all thefe animals was nearly of the lize I have before laid down, 

 fo that I may fay, the flefhy Fibres compoting the body of an 

 ox, are not, iingly taken, larger than thofe which go to the fub- 

 iiance of a moufe, though, as I have computed, the one animal is 

 thirty thoufand times the lize of the other. 



4s- 



