POP-UP. (BLUE RIBBON) NEW ADVENTURES OF TARZAN "POP-UP" by Edgar Rice Burroughs. Chicago: Pleasure Books / Blue Ribbon (1935). 4to (7 3/4 x 9 1/4"), pictorial boards, near fine. This is a fabulous pop-up Tarzan book with 3 double- page pop-ups by STEPHEN SLESINGER and with 2 black & whites on each page of text. A nice copy.