Edited by Michael Gomes, these are the stenographic transcripts of the Blavatsky Lodge meetings. When first published as the Transactions of the Blavatsky Lodge they were about 100 pages in length and only covered the first 10 or so meetings. This new book shows that those early meetings actually had about 350 pages of discussions. In addition, there were another 10 or so meetings that were never published. So, in total, this book has 650 pages of transcribed discussion between HPB and members of her TS lodge.
All the stanzas of the first volume of the SD are commented on, so this book is a must have, if one is serious about understanding the root ideas of Theosophy.
Here is a review, with a link to the publisher at the bottom of the review: