Edited by W. B. Bolton
Each year it becomes more and more necessary to plunge beneath the
surface of current events in order to form a just estimate of the actual progress
made in photography, and each year the task presents greater difficulties to the
chronicler. The past year is no exception to the rule; for what progress has been
made has been in the way of improvement rather than of discovery. The
revolution of four years ago is complete so far as the displacement of wet
collodion by gelatine is concerned, yet we are far from having settled down into
any fixed groove in our system of working. On the contrary, on and all are
striving to arrive at perfection in the working of various modifications of gelatinobromide
process, both in the preparation of the plates and also in their
development and after-treatment-with what amount of success the Exhibition of
1882 showed. While it was found that dry plates had almost universally replaced
the favourite wet process of former days, there was, in addition, a marked
improvement in the general character of the work, though it must be confessed
that some of the few wet-plate pictures shown were considered by many
competent judges to at least maintain their position, so far as quality was
concerned.
In the matter of processes of preparation there is little to be recorded in
the way of real novelty, thought a vast amount of work has been done in
extending and improving the methods already in existence. Each of the rival
systems of emulsification has received its fair share of attention, though the
oldest and simplest, consisting of more or less prolonged emulsification, appears
to be chiefly employed on the commercial scale. Considerable diversity of
opinion has been expressed with regard to the respective merits of the “boiling”
and “ammonia” methods, each giving its supporters; while a strong tendency has
evinced to attempt to utilise the different “precipitation” systems. So many
workers have been in the field that it is scarcely possible individualise, though it
is best just o mention the names of Captain Abney and Mr. W. K. Burton in this
connection.
Passing to development and similar matters, we find that a great amount
of attention has been bestowed on both the alkaline pyro. and ferrous oxalate
methods. In conjunction with the former of these, the chief feature of novelty has
been the working–up of Mr. Herbert B. Berkeley’s recommendation to use
sulphite of soda to prevent discolouration of the pyro. first made in last year’s
ALMANAC. As with everything new, this has called forth very various opinions;
but there can be little doubt but that in the majority of hands it has proved useful.
Some operators, however, still prefer citric acid for that purpose, thought it has
been shown that it exercises and equally important function in the developer. Mr.
G. Watmough Webster was the first to point out that the alkaline citrates have a
most powerful action in restraining or, rather, in arresting development; and,
utilizing this fact, he proposed to employ these salts for the purpose of checking
overexposure. Subsequent experiments have proved that otherwise hopelessly
over-exposed plates may be successfully treated by this means.
The ferrous oxalate developer so much employed on the continent and in
America has during the year advanced somewhat in popular method of preparing
and using it. Various attempts have been made to prevent its deterioration by
oxidation or to restore it when so spent, the most successful being M.E. Audra’s
plan of adding tartaric acid and exposing the mixture to light.
Little, if any, alteration has occurred in printing processes; the platinotype
method, however, is gradually pushing its way into favour. Encouraging results
have been obtained with emulsion s of chloride of silver in combination with
organic salts of the metal for positive printing- a method first suggested by
Captain Abney. Plain chloride emulsion with ferrous citrate or ferrous citrooxalate
development has also been used for the same purpose, and very
charming results produced.
An important step has been taken by the Photographic Society of Great
Britain, who, on the suggestion of Mr. Warnerke, appointed a committee to
consider the possibility of establishing a standard system of measurement of the
rapidity of lenses, and the results of the deliberations of the committee will be
found in the present volume.
Amongst the scientific events of the year have been a total eclipse and the
long-expected transit of Venus; and photography has played an important part in
the observation of both.
Increasing activity has prevailed amongst the societies. In addition to the
establishment of an extra series of so-called “technical meetings’ by the “Parent”
Society, we have to record the formation of four new societies- two in the north
(at Bury and Leeds respectively), the London and Provincial Photographic
Society, which is the outcome of the “Thursday evening meetings,” established
last year, and the Postal Photographic Society, which is a sort of exchange club
confined to amateurs.
In addition to the two annual exhibitions in Pall Mall and at Falmouth there
have been two others-one in connection with Captain Abney’s series of Cantor
lectures on photography, at the Society of Arts; the other at Dundee.
The Edinburgh and Newcastle societies have each also instituted
competitions which have taken the form of exhibitions on a small scale, the
object being to provide suitable presentation pictures for distribution amongst
their members.
Death has again been rife amongst us. Early in the year Dr. J. W. Draper,
of New York, was removed, and within the year his son, Professor Henry Draper,
followed him. Alphonse Poitevin and Dr. D. van Monckhoven have also left the
field in which they have laboured so long and usefully’ whilst amongst the less
familiar names we miss are Messrs. J. F. Fitzgibbon, of St. Louis, Thos. Millard,
T.H. Wainwright, R. Biggs, and R. Hills.