Title: On Champlain's astrolabe
Subtitle: lost on the 7th June, 1613, and found in August, 1867 : considered in solution of an obscurity in his journal of his first voyage up the Ottawa ; and the great antiquity of astrolabes and origin of their graduation
First published: 1879
Subjects: Astrolabes
People: Samuel de Champlain (1567-1635)