"It is our objective, as publishers to continue producing the very finest in Biblical literature. In doing so, we have combined the original Volumes 1 and II into Volume 1. Further, we have combined Volumes III and IV into Volume II, making this set of four original volumes now complete in two volumes. The second table of contents is located approximately midway through the book." Conley & Schoettle
Robert Govett on Revelation is offered only as a two-volume set.