256 
POPULAR SCIENCE REVIEW. 
The egg is beaten up in half the water, and the other ingredients added to 
the remaining half. When filtered, it is ready for use. At a meeting of the 
North London Photographic Association, Mr. W. Hislop strove to revive a 
long disused developer which he strongly recommended, namely, iron with 
sugar. In his own practice Mr. Hislop stated that he used with a fifteen or 
twenty grain solution of protosulphate of iron not less than fifty grains of loaf 
sugar. 
New Rest and Rosing Apparatus. — Mr. Sarony, the well-known Scarborough 
photographer, has recently placed in the market a piece of apparatus intended 
to supply a means of supporting the body as well as the head during the 
process of photographing. It is intended to have greater rigidity than 
ordinary rests, and a variety of adjustments to suit different requirements. 
A somewhat similar rest, but more perfect in its mechanism, and, unlike Mr. 
Sarony’s, not a fixture to the floor of the room, although even more rigid, and 
with all the appliances possessed by the above, has been invented by another 
clever photographer, Mr. Harman, of Peckham. 
Mr. Woodbury’s New Printing Process. — One of the more recent improve- 
ments in this process is that by which the necessity of mounting the prints 
has been done away with. A margin of white paper of any required width 
may now be obtained. 
Perspective and Photography. — Mr. Carey Lea, the American correspondent 
of the British Journal of Photography , has commenced a series of papers 
of a kind which have long been needed, intended to point out the exceptional 
and false effects given in perspective by using lenses of too short focus — 
such as are most commonly used by photographers — and other lenses of too 
long focus. When the series are completed, we have some comments to make 
on this subject, which is a most important one, urgently demanding attention. 
As illustrating the necessity there is for some elementary information thereon, 
we may add that at one of the photographic meetings a member stated gravely 
that “ painters invariably introduced several points of sight,” and another said, 
or is reported to have said, that the photographer should have a background 
“ painted to suit the perspective of the camera most generally in use,” as if 
the camera itself, and not its relative positions, gave the perspective, or as if 
it were possible to take sitters of various heights and in different positions, 
with the camera a fixture. 
National Portrait Galleries. — The Town Council of Manchester have taken 
up actively, at the earnest and long-continued solicitations of Mr. Lachlan 
McLachlan, the idea of forming a museum of photographic portraits of 
celebrities, which now promises to assume an important position. Other 
towns seem likely to follow this example. 
To clean off old Dried Films whether Varnished or not. — A plan for doing 
this effectively has been suggested by Major Russell as the quickest and. 
easiest he ever tried. “ Pour common wood naphtha over the plate like 
collodion, and return to the bottle ; then rub the surface with a rough 
cloth or tuft of coarse tow. If the film does not come off entirely at once, 
pour naphtha over the plate again. The same naphtha may be used indefinitely, 
following up with fresh as it wastes.” We quote this hint, worth knowing, 
from the Photographic Notes. 
Curious effects of the Yellow Ray. — In the course of some recent experi- 
