No. 2. Coat over iodine same as above, except recoat over the iodine
about one fourth to one half as long as first coating.

Dry Quick, No. 1.--Bromide of Lime and Starch.--The following
compound forms an excellent accelerator, and is used by many.
It is claimed for this preparation, that it will hold
the bromine longer than others where starch is not employed.
As regards this claim we do not think it can be substantiated.
Our experience in practice has led us to the conclusion
that there is no great difference as respects durability,
but there is some little difference as regards the tone
of the impressions produced by its use.

To one quart of hydrate of lime add one quart of finely pulverized starch.
To this mixture add bromine, until it assumes a deep yellow or pink color.

Starch may be added to any of the dry mixtures.

Use.--Coat over the iodine to a deep yellow, then over this quick
to a red color, recoat about one sixth of the time of first coating.

I will here again remark, that the exact color of the coating
is not essentially provided a proper proportion is preserved.

I have never seen it stated, though it be a fact worthy of note,
that a proportionate time for coating over the iodine and accelerator,
will not answer. For example: if a plate exposed to the vapor
of iodine be perfectly coated in sixteen seconds, and then
exposed to an accelerator, (not having iodine in its combination)