A Revision of the Sponges and Coelenerates of the Lower Helderberg Group of New York
Paperback. 7 plates + 261-309pp. Octavo [24 cm] Tan and black printed wraps. Good only. The majority of the paper spine is gone and the covers have been taped together. There are numerous losses from the edges of the wraps. The largest loss is from the rear wrap, near the..... More