Hardcover Book Lot, Books about Mammals. Books are, Mammal Species of the World  - Second Edition (1993). Walker's Mammals of the World - Fourth Edition - Missing outer box - (1983 2 volume set) from Johns Hopkins Press. Mammals of the World -  Second Edition ( 2 volume set with Box 1968) - Johns Hopkins Press. Mammals of North America by Hall and Kelson - 2 Volume Set ( no box 1959). The outer box for the 1959 set has a good bit of wear and tear and a large spilt on one side (see pic).  Books are in good condition for their age. There is a name stamped on the page edges, the outer box, the first page, and a name written inside 2 books (see pics). There is also an old price written in the 1959 volumes.  I did not see any other writing , but may have missed something. Covers have shelf wear, edge wear, rounded corners. Pages look very clean. Some pages may have a crease.  Thanks for looking!