336 Rtidimetiti of the Biuticnian Thtcrf. 



Prima Brunonis Theorix Rudimenta. Bonoiiix, i797> Oclavo, 16 pages. 



This paper of Aloyfius Zanottus is written in tlie form of a letter addrefled to Cliarlcs 

 Mundini. 



It contains a development of Dr. Brown's opinion, that irritability is one and indivifible 

 relative to the fyftem of the nerves ; that is to fay, that this force is diftributcd through 

 every point of the fy(lem,in the fame manner as velocity, imprefled on any body or fyftera 

 of bodies, appertains equally to all the elements of this body or fyflem. 



Irritants are diftinguilhed into extrinfic and intrinfic. 



The extrinfic are heat, light, found, food, &c. The blood and other animal fluids, though 

 appertaining to the fylleni of the animal, appear to aiTt on its economy like extrinfic objefls. 



The intrinfic irritants are the fun£lions of the fyftem, fuch as the niufcular contra£lion, 

 (he exercife of the fenfes, the adion of thought, the movements of the brain, &c. 



The common etJircl of thefe forces is motion. Each poflTeflcs a certain activity called 

 Aimulus. There cannot be fuch an agent as a fedative ; for, when the irritants produce 

 weaknefs, this wcaknefs mull be attributed to a defect of the ftimulating power ia 

 ■degree, &c. fee 



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