This is the Three Volume Set - THE NERVOUS SYSTEM;  1975; Edited by Donald Tower Neuroscience & Human Disorder

Each volues is 7 1/4 x 10 1/4", From Raven Press
:
1: The Basic Neurosciences, 685 pp
2: The Clinical Neuroscience, 542 pp
3:  Human Communication and Its Disorders, 564 pp

The dust jackets has some general wear, scuffing, wrinkles and some small tears (with a 1" x 1" x .5" triangle missing from the bottom edge of V. 2).  The book covers are in good shape with intact silver print titles on a black background.  I did not see any marks or writing on the inside pages, but I did not check all 1,791 pages so there may be some.  The former owner's name is stamped on each initial blank page; and the top and side edges of the pages in each book.  Very nice condition overall. 
 
All 1,791 pages for one price!  This is a heavy set!