Ueber die drei ältesten fundamentalen Urkunden der königlichen Kunstvon Theodor Petruschky

Le symbolisme occulte de la franc-maçonnerie : Analyse interprétative du frontispice de la 'Maçonnerie Occulte' de J.M. Ragon

Laken : Een kasteel in het Verlichte Europa

The Pythagorean triangle, or The science of numbers

Life symbols : A brief study into the origin and significance of certain symbols which have been found in all civilisations, such as the cross, the circle, the serpent, the triangle, the tree of life, the swastika, and other solar emblems, showing the unity and simplicity of thought underlying their use as religious symbols

Masonry from Egypt? Some thoughts on the alleged Egyptian origin of Freemasonry