Rosetti, Gioanventura. The Plictho of Gioanventura RosettiActually C16th but it contains quite a bit on the dyeing of leather (tanned and tawed)I have a copy but I got the following from a search on Goggle which gave me the following: http://www.cs.vassar.edu/~capriest/dyelit.html
This has some other useful references.
Rosetti, Gioanventura. The Plictho of Gioanventura Rosetti: Instructions in the Art of the Dyers which Teaches the Dyeing of Woolen Cloths, Linens, Cottons, and Silk by the Great Art as Well as by the Common, trans. Sidney M. Edelstein and Hector C. Borghetty. Cambridge, Mass.: The M.I.T. Press, 1969.
First published in 1548 in Vienna, this is a detailed source with several recipes for many different colors. Emphasis is on reds and blacks. Also includes recipes for dyeing such things as leather, feathers, wood, etc.