Ixiv 



ADVERTISEMENT. 



to publish it, and no alteration has been 

 made in it, besides a very slight one of 

 expression, in a few places, which its being 

 presented to the public, instead of being 

 addressed to a philosophical society, ren- 

 dered necessary. 



All his other works, whether philoso- 

 phical, literary, or medical, (excepting only 

 those of a political nature, which are men- 

 tioned in the Memoir, and to which no 

 more particular reference could be made 

 than what is made in it,) are enumerated 

 in the following list, in order that they 

 may be more generally known and more 

 easily referred to. 



Two letters, in reply to Dr. Darwin's 

 remarks, in his " Zoonomia," upon what 

 Dr. Wells had written in his " Essay upon 

 single Vision with two Eyes/' on the ap- 

 parent rotation of bodies, which takes 

 place during the giddiness occasioned by 

 turning ourselves quickly and frequently 

 round. These were published in the 



