1 86 MEMOIR OF GEORGE WILSON. CHAP. VIII. 



contents, in the "North British Review" for 1856 : "Al- 

 though Dr. Wilson himself modestly regards his work ' only 

 as an imperfect contribution to the history of a remarkable, 

 and by no means rare peculiarity of vision, requiring for its 

 full elucidation a profounder acquaintance with optics, ana- 

 tomy, and physiology, than he dared pretend to,' yet we 

 have no hesitation in recommending it to readers of all 

 classes as a popular work of great value, exhibiting no de- 

 ficiency of optical, anatomical, and physiological knowledge, 

 analyzing faithfully, and criticising candidly, the labours and 

 views of preceding writers, and calculated, as he himself 

 trusts, ' to create, or deepen the conviction that the study ol 

 colour-blindness will throw light upon intricate departments 

 of scientific optics, anatomy, and physiology,' whilst it has 

 ' already an important bearing on the aesthetic arts, which 

 express beauty by colours, and on those economic arts, 

 such as mapping, but especially signalling, in which colours 

 are graphically employed.' . . Though Dr. Wilson has 

 already taken a high place among the distinguished men 

 who adorn the colleges of our northern metropolis, his work 

 on colour-blindness will add greatly to his reputation." l 



Professor Cherriman 2 also reviews this work at great 

 length in the " Canadian Journal " for March 1856, and con- 

 cludes "with hearty thanks to Dr. Wilson, both for his own 

 experiments and researches in this obscure subject, and for 

 having embodied all that is known about it in a clear and 

 concise resume, which will serve as a standard of reference 

 hereafter to the scientific investigator." 



In September 1857, an ophthalmological congress was held 

 at Brussels, attended by men of eminence from all parts of 

 the world, and it was confided to Mr. White Cooper, of 



1 "North British Review," February 1856, pp. 327, 328. 



2 Professor of Natural Philosophy, University College, Toronto. 



