@doubleshuffle-- oh, you are entering the frustrating and fascinating world of illustration rehabilitation! It's a deep forest, full of strange discoveries. Very satisfying when you have the patience for it.
The Online Books Page is a University of Pennsylvania database, that gives links to available free downloads of public domain books.
Take a look at this link to see if HathiTrust has any G. W. Russell titles you need:
http://onlinebooks.library.upenn.edu...%201867%2d1935
If you are geo-restricted from HathiTrust, let me know by pm, and I can help.