you start out one evening to transfer these mental images to the
plate. A little patience, endurance, and a great deal of enthusiasm will
do wonders. It is not the easiest thing in the world to start out with an
8x10 view camera, a good substantial tripod, and several plate-holders. A
strong tripod is absolutely necessary on account of winds, jars,
vibrations, etc. To avoid halation use portrait film, take the view where
there are no glaring lights, and develop with Azol. Judge your time
according to the amount of light (two to ten minutes). Capping the lens
each time a lighted moving vehicle comes along helps the picture. For
night pictures probably the best medium is gum palladium, because it lends
itself to the mellow evening lights.

SOPHIE L. LAUFFER.

HOW TO "WORK UP" A NEGATIVE

_See __Along the Canal_

"Along the Canal" was taken about mid-day in July in bright sunlight,
Graflex 4x5, Cooke lens working at one-twentieth of a second, F 11, on
Seed 26x plate, Pyro (Kodak powders) developer. In working up, first make
Solio print and enlarge by photographing up to 6x8. On this negative sky
and some trees were painted out, using glass side to work on. From this
negative print was made on American platinum paper, first the foreground,
then the sky printed from negative which will suit subject. Retouching
can be done on this print with carbon pencil. You then have a print which
can be enlarged to any size, using Smith lens. This print is on Spanish
hand-made paper, hand-coated with platinum.

W. E. MACNAUGHTON.

AN EXPERIENCE WITH A RAILWAY DETECTIVE

_See __The Railway Station_

I wandered into the Grand Central Station in New York City with a new
camera--a Speedex 21/4x31/4. It had been given me as a present by my partner
in photographic and other joys, who was tired of seeing me lug around an
8x10 view camera and plates. I thought the light looked interesting in
the big station and opened my little box. Appeared on the scene the
station detective. "Not allowed to make photographs without a permit."
"Where do I apply for it?" "At the stationmaster's room." I walked half
a mile and interviewed a pretty stenographer. She said, when I showed her
the tiny camera, "Certainly you can make snapshots with that little thing.
What we d