_Tent for Collodion Purposes._--Some time ago, I saw in "N. & Q." a slight
notice of a tent for the collodion process: I think it is called "Francis'
Collodion Tent." Would you, or some of your photographic correspondents,
oblige me by giving a short description of this tent, or any other form, so
that I may be able to operate with collodion in the open air?
I am of an opinion, with a portable tent, so that we could expose paper in
a damp state, the process might be done nearly as quick as collodion. All
that need be done for a paper negative, would be to expose and develop; it
can be fixed at home. But after being developed, it should be well washed
and dried.