I finally located a copy of Glafkides. I was looking under the wrong book title!

Anyhow, Volume #1, page 342-343 gives the table posted here on APUG and handed out at our last workshop. The original in Glafkides is wrong, as described in the OP and as corrected above. Glafkides does mention in the text the need to use different gelatins for the different grades of paper, but gives no details.

The interpretation of step #9 is still ambiguous due to the original German and the English translation error.

PE