1951. No Edition Remarks. 227 pages. No dust jacket. This is an ex-Library book. Brown cloth boards with gilt lettering. Textblock is in Latin. Volumen Quartum. Library copy, with expected inserts, stamps and inscriptions. Clean pages with light tanning and mild foxing throughout. More pronounced to free endpapers and pastedowns. Top textblock edge dyed gilt. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Gilt lettering is bright and clear. Visible wear marks to boards.