"I have recommended the book in the past, for all you folks who love zoo history and Lincoln Park as I do, and bring to your attention that it normally sells for 49.95 hardcover but there are currently 5 available at Amazon for 39.89. It is one of the best books available on the history of an American Zoological Institution and along with our friend Gary Clarke Director Emeritus of the Topeka Zoo's book "Hey Mister, Your Alligator is Loose," I promise you zoo buffs don't have a complete library without these two publications." //Wade Burck