Photographic Notes. 
balland tube, 
the magne- 
sium powder 
is ejected 
from the cell 
through the 
two wicks, 
thus causing 
a wide flame 
when united, 
much in the 
same way as 
the flame 
froma ‘Bray’ 
fish-tail burner. The reservoir 
for the methylated spirit should 
not be filled, as it is only 
necessary to keep the wicks 
saturated. ‘The Reflector (Fig. 
2), as will be seen from the 
engraving, can be raised or 
lowered at will, to heights vary- 
ing from about 4 to 6 ft. The 
blotting-boards are attached 
to the wire frame in order to 
diffuse the light, as by direct 
rays portraiture would be im- 
possible. It will be observed 
that no gun-cotton is required 
with this lamp. 
Description of Figures. 
Hig. ae 
A.—Spirit-Lamp. 
B. B.—Two Circular Wicks. 
C. C.—Two tubes from Cell. 
D.—Cell, holding about 15 grs. 
of magnesium powder. 
EK. E.—Pneumatic ball and tube 
Fig. 2. 
A.—Tin Reflector on telescopic 
stand. 
B.—Thumb-screw to fix same at 
any given height. 
C. C.—Holes on either side, 
through which the Pneu- 
matic tube is passed. 
D.—Wire Frame, to which one 
or two sheets of Marion’s 
blotting - boards are at- 
tached. 
