A Preliminary Discourse On the Study of Natural Philosophy
Astronomy
A Treatise On Astronomy
Meteorology from the Encyclopaedia Britannica
Meteorology from the Encyclop?dia Britannica
Traite De La Lumiere, Tr. Avec Notes Par Mm. P.F. Verhulst Et A. Quetelet (French Edition)
Ueber Das Studium Der Naturwissenschaft (German Edition)
Vom Licht (German Edition)