










140 I.S.C. Proceedings of the Ninth _[NS., XVIII, 
TABLE I. 
] 
Age, Years. Male. | Female. Total. 
: Rien 2 Ra 
Sand under .. a cet | 21 48 
| 
5 to 15 ng * 9 | 10 19 
Over 15 = 4 | 4 13 
4 
60 
} 
TABLE II. 
Condition. Frequency. | Condition. Frequency. 
Liver. ae blindness: ae 12 
Enlarged se 7 Cornea :—Clea a } 
Palpable : 23 beanie = 11 
Not Palpable 34 Deep infil- 
Reoaely small. . 2 tration .. 22 
al ted 14 Ulcerated 27 
Jaundic | D = no 9 
Generar s appease nce :— Conjunct 
Fat and healthy. 8 Epithelial Scbecias | | 
in, not weasel 28 nly 8 
Marasmic 44 Serosid with | 
id a 
tiv 4 61 
Apgarently nor- ey is 

eaeben tend Sneed Re ES 
Sssociated with the eye changes are (b) marasmus, intestinal disease, 
respiratory tract disease, liver disease (atrophic and h yperatrophic with 
r without rae % phe tate changes in skin and mucous membranes 
and soe. of t 
which ely night blindness alone or pn pepe of amild 
— (referred to ve — were not con ee in the above figures. 
There appears to ome connection between night blindness with or 
without Rerascaiahiata and night blindness with ceoriitlla; whether of the 
Bo ntosa,” ‘‘ sine pigmento” or ‘* Punctata albescens oe raat e 
be that all Povey cases have sgenstine corp pte in 
1s Keratomalacia due to a mtd in Fat soluable A? 
The experimental production of corneal necrosis by the deprivation 
of fat soluable A suggests that this food factor plays an important 
in the a condition. It was not eaters that the clinical condi- 
i ou ; i animals. in 
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