On Modern Physics
What is Light?
Causality and Relation of States in Physics
Experimental Researches in Electricity 1-2
Principia - The Motion of Bodies, The Sistem of the World (1-2)
Frye's First Steps in Geography
Leading Facts of Geography
Webster's Geographical Dictionary
Maps and Mapmakers of the Aegean
Oceanography
Maps of the Ancient Sea Kings
Geology of the Nonmetallics
British and European Fossils
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