272 Onthe Oxymelprocessin Photography, [xo. 4, >zw series, 
mel used. It is frequently rery dark in color owing to the large 
quantity of wax always present in inferior honey. 
After the plate has heen washed for a little in distilled water 
after being excited in the bath, it is to be plunged into a flat dish 
containing enough of the Oxymel bath to cover it. This bath is 
prepared as follows, and may be used repeatedly. 
Oxymel 1 oz.^p,^^^^ 
DistiUed Water 4 „ / 
The plate is left in this bath for a lidnute and is then well drain- 
ed before being placed in the Camera frame. The plates will keep 
perfectly well for a week in this climate even ^uring hot weather. 
The exposure is long, viz. with a Ross* 4 inch landscape lens 
and J in diaphram as much as 9 or 10 minutes will be needed to 
bring out dense foliage. But this process has one advantage over 
others on Collodion, viz. that provided a sufficient length of ex- 
posure has been given, no ill effects follow from over exposure, as 
the picture seems to correct itself in the development, fogging being 
prevented by care being taken not to carry the first development 
too far. 
The picture is then washed and dried in the usual way, and 
finally Tarnished. 
