CXXX BOWMAN LECTUKE, 



The chief complaint was that she could not see by day and 

 could not tell colours. She said that in the daytime her 

 sight was so bad that she was afraid to cross the street 

 though she could do it with ease in the evening, and that 

 she could read small print by a light so dull that other 

 people had to put away their books. She was so colour- 

 blind that she always dressed in black and white to avoid 

 making absurd mistakes. Her refraction was very slightly 

 H., and V. -$$ and J. 6 held very close in daylight ; 

 constant slight lateral nystagmus. She saw worse after 

 eserine had contracted the pupils. She sorted Holmgren's 

 wools entirely according to their brightness, yellow looking 

 the brightest. Disc and retinal vessels of healthy appear- 



Fia 61 



ance/but a slight whitish haze of doubtful meaning about 

 the Y.S. A sister, aet. 20 years, who came with her had 

 exactly the same defects of sight, and the spectrum to 

 her was a band or stripe of one colour, brightest in the 

 middle and darker at each end. I afterwards saw a brother, 

 set. 22 years, who was affected in the same way. They 

 were members of a childship of 1 J, of whom 6 were living. 

 The parents were said to have perfect sight and no colour- 

 defect, but an uncle was said to be colour-blind. 



I afterwards saw a still more interesting family (Pike- 

 Channon), (Fig. 62), in which two sets of cousins were 

 affected, two of the victims being idiotic and quite blind. 

 The colour-blindness of the brothers 111, 4 and 5 was 

 carefully examined by Captain, now Sir William Abney, 



