ENLARGING ON ARGENTIC PAPER AND OPALS.

By A. GOODALL.

[Footnote: Read before the Dundee and East of Scotland Photographic
Association.]


The process of making gelatino bromide of silver prints or enlargements
on paper or opal has been before the public for two or three years now,
and cannot be called new; but still it is neither so well known nor
understood as such a facile and easy process deserves to be, and I may
just say here that after a pretty extensive experience in the working of
it I believe there is no other enlarging process capable of giving
better results than can be got by this process when properly understood
and wrought, as the results that can be got by it are certainly equal to
those obtainable by any other method, while the ease and rapidity with
which enlarged pictures can be made by it place it decidedly ahead of
any other method. I propose to show you how I make a gelatino bromide
enlargement on opal.

[Mr. Goodall then proceeded to make an enlargement on a 12 by 10 opal,
using a sciopticon burning paraffin; after an exposure for two and
a-half minutes the developer was applied, and a brilliant opal was the
result.]

We now come to the paper process, and most effective enlargements can be