I was looking in the book Silver gelatin and ran across a very simple recipie for an unwashed emulsion.

It contains of
A:
Gelatine
destilled water
salt

B:
destilled water
silver nitrate

this recipie looks so familiar to salt print so my question would be:

Is this for an emulsion used in a darkroom - and if so with a normal developer (salt prints doesn't require developer)?
Or is it for contacting technique using UV light?

The book doesn't mention anything except the recipie....

Anyone knows?