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of Mr. Hunter, by saying, that they are 

 the result of peculiar or specific actions ? 

 To explain my meaning with respect to 

 this subject, I must request you to advert 

 to the labours and opinions of preceding 

 physiologists. Were they not looking for 

 mechanical contrivances, to account for the 

 peculiar secretions which different glands 

 produced? Ruysch displayed the penni- 

 cillous, the stellated, and contorted arrange- 

 ments (called the aci nous structure) of the 

 minute and probably secerning vessels of 

 different glands. I also am persuaded that 

 Mr. Hunter, when he put the pieces of 

 talc within the tunica vaginalis of a 

 ram, and withdrew them successively to 

 ascertain how soon the secreted fluids 

 acquired the puriform character, did, when 

 he afterwards examined the parts, observe 

 them with particular attention, in order 

 to discover whether some peculiarity of 

 •tructure had not preceded this peculiarity 



