Preliminary Discourse on the Study of Natural History

Familiar lectures on scientific subjects

Meteorology from the Encyclopaedia Britannica

A manual of scientific enquiry

Outlines of astronomy

Results of astronomical observations made during the years 1834, 5, 6, 7, 8, at the Cape of Good Hope

A treatise on astronomy

A preliminary discourse on the study of natural philosophy

Light

Astronomy

Essays from the Edinburgh and Quarterly Reviews