Author:John Thomas, red hard back, 5 volume set. Published by The Christadelphian in 1981. It is a reprint of the 1936 edition and is practically verbatim reprint of the first edition of 1861. 
This product is sold as the complete set of 5 volumes (individual volumes are available new from The Christadelphian enquiries@thechristadelphian.com, or second hand through this web site).
A three part  index is included with each set.
1. An alphabetic list of all the subjects considered in the 5 volumes with the volume and page number for the black covered 1861 edition.
2. A complete list of all the passages of scripture explained or referred to with the volume and page number for the black covered 1861 edition.
3. A comparison table between the black covered 1861 and the red covered edition (1936) which is currently available.