I have posted a Logos 3 Note file consisting of an index of the 23 volumes of The Practical Works of Richard Baxter in the File section of the forum. There are notes in that posting concerning the file and how to make use of it in Logos 4.
The Index currently is broken down by volume, so is more of a complete Table of Contents than an Index. If I get the energy I may attempt an actual Index of the works included in the 23 volumes. There already is a subject index in volume 23.
http://community.logos.com/forums/p/26762/197622.aspx#197622