The

following

results establish its occurrence,

but also indicate

a

greater

extent of freedom

from it than is

enjoyed by Europeans, among of of whom 476 per cent, were 18,000 upwards found to be affected to some extent, and 3*5 per cent,

markedly. Abstract

of observations

made up to date.

Natives Colour examined, blind.

Per cent.

I. Al. Gaz. 1880 of the Allahabad Med. Soc. '82 Now collected by myself

8S0

26

3,192

56

2*9 1*4

Total...

4.372

72

i'6

McReddie

...

Cullen?Proceedings

...

...

...

300

Of the 3,192 observations now recorded I personally made 842, for the remainder I am indebted to the several are

mentioned in the

gentlemen whose names accompanying statement.

"

Holmgren's colored worsted method employed in every cases. Observer.

Surg. H. Hill

R. Macrae T. Lewtas ,, A. Tomes ,, Do. R. Cobb ? I). Basu ,, Do. Asst.-Surgeon Kherode Ch. Chowdhry ,,

Place.

Purulia

Julpigori Backergunge Midnapore Do.

Hazaribagh Faridpur Do.

Alipore

Total

11tJt

SOME FURTHER NOTES

ON COLOUR

BLINDNESS IN INDIA. By Surgeon A. Civil Dr.

Tomes,

Surgeon, Midnapore.

Macgowan

was

led to doubt the exist-

of the defect among the natives of this country, in consequence of certain observations

ence

made

by

him with

and Indo-China

negative

(Lancet,

results in

Vol. I.

1882,

p.

Japan 76).

June 1883.

test"

Class.

Prisoners Do. Do. Do. Police Prisoners Do.

Schoolboys j Prisoners

was

the

No. No. exacolor mined. blind.

164

None.

127 304

None.

760 82

2

14 3

438

1

184

5

110

2

1,023

29

3,192

56