30 HUNTERIAN ORATION. 



less, each most competent to decide upon 

 the best means for effecting the latter pur- 

 pose in that to which he had been edu- 

 cated, and his attention chiefly directed. 

 Medicine is one and indivisible : it must 

 be learned as a whole, for no part can be 

 understood, if studied separately. The 

 physician must understand surgery, and 

 the surgeon the medical treatment of 

 diseases. Indeed, it is from^ the evidence 

 afforded by external diseases, that we are 

 enabled to judge of the nature and pro- 

 gress of those that are internal; which 

 appeared so clearly to Boerhaave, that 

 though his object was to teach his pupils 

 the practice of medicine, he began bj 

 teaching them surgery. 



Yet as medical science is so very 

 extensive, and such accurate knowledge 

 of its various subjects is required, the 

 division of it into two principal depart- 

 ments, which custom has established, may 

 be continued with great propriety and 

 advantage. So much knowledge and 

 talent is requiste in the division of sur- 

 gery, for the correct re-adjustment of 

 parts which have been severed and separ- 



