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ware, and I find this answers well, as it is heavy, and so not 
easily knocked out of place as some others, besides being 
strong. Ishould say, let this pan be ample in dimensions, so 
that the solution may not readily become saturated with 
Silver Iodide and Bromide, for sucha proceeding will be found 
most economical in the end. 
Next to the Hypo. dish comes a common wooden pail to 
catch the washing from developing, and over it, standing on 
a higher shelf, is another pail of clean water having a faucet 
set in one side near the bottom. This is for washing, but 
when a running stream is obtainable, of course it is prefera- 
ble, unfortunately in my case such was not readily obtainable. 
Under the window is placed the plate holder with its Kits, 
and on the table near the pail the bottle of developer. On 
the shelf with the pail of clean water, is the bottle of collo- 
dion and brush used for dusting the plates. On the table I 
also have a so-called “ manipulator,” which I find a very 
useful contrivance, and since I have used it I can exhibit 
cleaner hands, clothes and negatives than I had before I 
bought it. This contrivance is a rod or handle of wood 
having at one end, and at a right angle to it a “sucker” of 
caoutchoue which when lightly pressed against the glass plate, 
holds it sufficiently firm to permit of its being manipulated 
during development. 
The bath I use is one that is not very strong, about 
40 grains to the ounce, shghtly acid and only partly 
saturated with Silver Iodide, in fact a bath that is found to 
give sharp and intense negatives with the collodion I use, for 
it must be always borne in mind that the bath and collodion 
must always be suited to each other. 
I have used several collodions, but take as a standard one 
that gives an even structureless film, as thereby I am enabled 
if I desire to enlarge the pictures I obtain. With care in 
the selection of collodion and bath, I find no re-develop- 
ing or intensification of the negative of any kind necessary. 
But as it may be of value to others to have them distinctly 
specified, I will here set down the formule of a set of 
