A quick check of one easy-to-access book says under " Contact printing equipment" (page 427 in Henney & Dudley, Handbook of Photography, 1939) (A great book if anyone is interested in the one complete book), "Gaslight or chloride paper used for contact printing . . ."

Further: "Chloride papers are completely developed in about 45 sec. to i min."

Elsewhere in the chapter: " Chloride papers are the slowest and are used for contact printing. "

There are different curves for chloride paper and for chlor0-bromide and bromide paper.

So, Jay, no, definitely no, it is not fair to say I know "no more about these emulsion formulae than what's printed on the packaging." I believe you are just trying to be antagonistic, not for the first time, and not that I am surprised.