Having been thoroughly washed, I dissolve the pellicle in water by
immersing the beaker containing it in the water bath. I then add the
remaining gelatine, and make up the whole with 3 ounces of alcohol and
water to 30 ounces for the quantities given. I pass the emulsion through
a funnel containing a pellet of cotton wool in order to filter it, and
it is ready for coating the plates.

To coat a plate, I place it on this small block of leveled wood, and
pour on down a glass rod a small quantity of the emulsion, and by means
of the rod held horizontally, spread it over the plate. I then transfer
the plate to this leveled slab of plate glass, in order that the
emulsion on it may set. As soon as set, it is placed in the drying box.

This process, as here described, does not give plates of the highest
degree of sensitiveness, to attain which a further operation is
necessary; they are, however, of exceedingly good quality, and very
suitable for landscape work.--_Photo. News_.

* * * * *




PICTURES ON GLASS.


The invention of M. E. Godard, of Paris, has for its object the
reproduction of images and drawings, by means of vitrifiable colors on
glass, wood, stone, on canvas or paper prepared for oil-painting and on