DESCRIPTION OF SATAN’S COURT… THE EARTH’S CRUST IS FOUR MILES THICK; INSIDE IT IS HOLLOW; AT THE POLES ARE LARGE OPENINGS… BY WALTER BUTLER HARRIS (1884)
MY ATTAINMENT OF THE POLE : BEING THE RECORD OF THE EXPEDITION THAT FIRST REACHED THE BOREAL CENTER, 1907-1909 BY FREDERICK ALBERT COOK (1911)
THE KINGDOM OF AGARTTHA: A JOURNEY INTO THE HOLLOW EARTH (MISSION DE L’INDE EN EUROPE) BY ALEXANDRE SAINT-YVES D’ALVEYDRE (1886)
THE HOLLOW GLOBE: OR, THE WORLD’S AGITATOR AND RECONCILER. A TREATISE ON THE PHYSICAL CONFORMATION OF THE EARTH BOOK BY M. L. SHERMAN (1871)
THROUGH THE FIRST ANTARCTIC NIGHT, 1898-1899; A NARRATIVE OF THE VOYAGE OF THE “BELGICA” AMONG NEWLY DISCOVERED LANDS AND OVER AN UNKNOWN SEA ABOUT THE SOUTH POLE BY FREDERICK ALBERT COOK (1900)
THE INNER WORLD: A NEW THEORY SETTING FORTH THAT THE EARTH IS A HOLLOW SPHERE CONTAINING AN INTERNAL HABITABLE AND INHABITED REGION BY FREDERICK CULMER (1886)
TALES OF A HOLLOW EARTH TRACING THE LEGACY OF JOHN CLEVES SYMMES IN ANTARCTIC EXPLORATION AND FICTION (THESIS) BY L. I. CHAPLOW, UNIVERSITY OF CANTERBURY (2011)
SYMMES’S THEORY OF CONCENTRIC SPHERES : DEMONSTRATING THAT THE EARTH IS HOLLOW, HABITABLE WITHIN, AND WIDELY OPEN ABOUT THE POLES BY JAMES MCBRIDE (1926)
SOME STUDIES OF RADIO TRANSMISSION OVER LONG PATHS MADE ON THE BYRD ANTARCTIC EXPEDITION BY L.V. BERKNER (1932)
PARADISE FOUND, THE CRADLE OF THE HUMAN RACE AT THE NORTH POLE : A STUDY OF THE PRIMITIVE WORLD BY WILLIAM FAIRFIELD WARREN (1885)
THE FIGHT TO CONQUER THE ENDS OF THE EARTH : THE WORLD’S GREAT ADVENTURE: 1000 YEARS OF POLAR EXPLORATION INCLUDING THE HEROIC ACHIEVEMENTS OF ADMIRAL RICHARD EVELYN BYRD BY FRANCIS TREVELYAN MILLER (1930)
ON EDWARD BULWER-LYTTON: AGHARTA, SHAMBHALA, VRIL AND THE OCCULT ROOTS OF NAZI POWER BY JOSEPH GEORGE CALDWELL (2004)