THE SWASTIKA: THE EARLIEST KNOWN SYMBOL, AND ITS MIGRATIONS: WITH OBSERVATIONS ON THE MIGRATION OF CERTAIN INDUSTRIES IN PREHISTORIC TIMES THOMAS WILSON 1896
THE NON–CHRISTIAN CROSS; AN ENQUIRY INTO THE ORIGIN AND HISTORY OF THE SYMBOL EVENTUALLY ADOPTED AS THAT OF OUR RELIGION JOHN DENHAM PARSON 1896
THE SERPENT SYMBOL; AND THE WORSHIP OF THE RECIPROCAL PRINCIPLES OF NATURE IN AMERICA E. G. SQUIER 1851
THE HAND: A SURVEY OF FACTS, LEGENDS, AND BELIEFS PERTAINING TO MANUAL CEREMONIES, COVENANTS, AND SYMBOLS LEWIS DAYTON BURDICK 1905
CHRIST LORE: BEING THE LEGENDS, TRADITIONS, MYTHS, SYMBOLS, CUSTOMS AND SUPERSTITIONS OF THE CHRISTIAN CHURCH FREDERICK WILLIAM HACKWOOD 1902
