Van Dyke- Increasing contrast

TERRY KING (101522.2625@CompuServe.COM)
18 Jun 96 07:28:00 EDT

Richard Sullivan said in relation to mercuric chloride toning of Van Dyke
prints:

" Now why did I try this on a Van Dyke? Well it was
back in the 60's, and was probably a chemically induced inspiration."

Is this combination archival personswise ?

Terry King