of the fiftieth birthday of his Royal Highness; and very heartily to
wish him, in homely English phrase, "Many happy returns of the
day!"--_Illustrated London News._

* * * * *




DEVELOPMENT WITH SUCRATE OF LIME.


I have experimented with carbonate of lithia as an accelerator, and I
have obtained with it rather favorable results. However, in opposition
to Mr. Wickers, I have always found that carbonate of lithia, used
even in larger doses than those recommended by this author, was not
sufficiently active, and that development had to be too much prolonged
in order to obtain prints of good intensity. I have also observed that
the prints developed by this process were as often fogged as when I
made use of carbonate of potash. The oxides of alkaline metals or
their alkaline salts are not the only accelerators susceptible of
being used in pyro development. Two oxides of the earthy alkaline
metals, lime and hydrate of barytes, may also be used as accelerators.
I will not insist upon the second, which, although giving some
results, should be rejected from photographic practice on account of
its caustic properties, and of its too great affinity for the carbonic
acids in the air, which prevents the keeping of its solutions. This
objection does not obtain for the first, provided, however, that
ordinary lime water is not used, but a solution of succharate or
sucrate of lime. In my experiments I have made use of the following