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0.5
1 cm
/,
UBH
to my letter about
tion of sensil-
of v
which' appeared in
Australian Photograph"
s
c or
my friends
my own
T
think it
and
espec
with age
out as
K?nce with ce
brands of plates
i s
jt
is very important.
T suppose
behave with age?
size would b^
most
convenient forr
yo
veness
long.
-ou
keep it
Again thanki
October 139..
:]so that you can
PATHS, 4,Plane Vendome
that plates
most photographers
it anu see if it loses
Mates, lose sensitivenos
such an*expo
[tilms, to see how th
am much it —
"KOCAK, LONDON."
J-H77.
Dr. Dex Wolf,
Sternwarte.
Heidelberg. Germany
T am exceedingly obliged to you for your courteous re;
abstract from your article on the subject