Here are links to a couple of PDF files placed in the public domain by Christia Mercer, Professor of Philosophy at Columbia College.
1. Knowledge and Suffering in Early Modern Philosophy: G.W. Leibniz and Anne Conway
2. Sympathy: Early Modern: Anne Conway and G.W. Leibniz DRAFT!
The links are valid at the time of posting; if they do not work when you try to download, please let me know!