Blue Book - March 1929 - Tanar of Pellucidar 1/6
Blue Book - April 1929 - Tanar of Pellucidar 2/6
Blue Book - May 1929 - Tanar of Pellucidar 3/6
Blue Book - June 1929 - Tanar of Pellucidar 4/6
Blue Book - July 1929 - Tanar of Pellucidar 5/6
Blue Book - August 1929 - Tanar of Pellucidar 6/6
Blue Book: May 1929 - Tanar of Pellucidar 3/6
Blue Book: June 1929 - Tanar of Pellucidar - 4/6Blue Book: July 1929 - Tanar of Pellucidar 5/6

Blue Book - September 1929 - Tarzan at the Earth's Core 1/7
Blue Book - October 1929 - Tarzan at the Earth's Core 2/7
Blue Book - November 1929 - Tarzan at the Earth's Core 3/7
Blue Book - December 1929 - Tarzan at the Earth's Core 4/7
Blue Book - January 1930 - Tarzan at the Earth's Core 5/7
Blue Book - February 1930 - Tarzan at the Earth's Core 6/7
Blue Book - March 1930 - Tarzan at the Earth's Core 7/7
Blue Book: September 1929 - Tarzan at the Earth's Core 1/7Blue Book: October 1929 - Tarzan at the Earth's Core 2/7Blue Book: November 1929 - Tarzan at the Earth's Core 3/7Blue Book: January 1930 - Tarzan at the Earth's Core 5/7Blue Book: February 1930 - Tarzan at the Earth's Core 6/7