2p2 ESSAYS AND OBSERVATIONSf 



A R T. XTII. 



j4n Attempt to determine h'j Experiments , how 

 far fome of the mujt po-werpul Medicines^ 

 viz. Opium f ardent Spirits, and ejj'ential 

 Oils^ offcB Animals by ading on tbofe 

 Nerves to 'which they are primarily applied^ 

 and thereby bringing the reft of the Nervous 

 Syftem into Sufferance^ by -what is called 

 Sympathy^ of Nerves j and hoiu far thefe 

 Medicines affcSi Animals^ after being taken 

 in by their abforbent Veins, and mixed and 

 conveyed ivith their Blood in the Courfe 

 of its Circulation y ii-ith Phyfiological and 

 praEiical Remarks ; ^yDr Alexander 

 Monro, Phypcian and ProfeJJbr of Phyfic 

 and of Anatomy in the Univerftty of Edin- 

 burgh *. 



HAVING formerly endeavoured to, 

 fhow, in an Eflay on the Valvular 

 Lymphatic Veffels, that the matter of many 

 difeafes is abforbed by thefe veiTels, and 



conveyed 



* Read 1761. 



