92 Dr. 'Johnjionis Account of the 



of Physic for the ufe of Students, 1772, rC- 

 publilhed 1774. 



The Doftor intended this work as a text 

 BOOK, to be illuftrated by his ledures on the 

 pradice of phyfic ; but he died before he had 

 fini(hed it, and before he had finifhed the firft 

 courfe of ledures, which he gave on that text. 

 It is written with great perfpicuity and fimpli- 

 city : the author has intentionally avoided fyfte- 

 matical arrangement, perhaps from an opinion, 

 that the art of medicine was yet in too imperfect 

 a (late, to admit of any perfect fyftematical form. 

 However this may be, the work evidently dif- 

 plays the author's great fitnefs to teach that art. 

 A truly pradical genius appears confpicuoufly 

 in that part of the book, which is thrown into 

 interrogations. Into thcfe, our fagacious author 

 has thrown every thing which had importance 

 to require peculiar attention, as well as thofe 

 things, which are ftiil matters of doubt and un- 

 certainty, in the practice of medicine. 



The Doctor's death happened wh'le he was 

 leduring on the Pleurify. His fon, Dr. James 

 Gregory, finiflied that courfe of lectures, to the 

 general fatisfaftion of the Univerntyj and he 

 therein gave ample proof of his fitnefs for the 

 ftation of ProfefiTor of Medicine, which he now 

 fills with great honour to himfclf, and to the 

 Univerfity — Non deficit alter aureus, 



Thi? 



