On the observations made with a rigid specteoscope, by Captain Mayne and Mr. Connor, on a voyage to the Straits of Magellan.

8 leaves, 8vo, paginated [5-6] 7-19 [1]. Stitched: in contemporary brown plain wraps. In good condition, though folded in half lengthwise and with wraps rather grubby. Inscription reads 'Dr Tyndall FRS &c &c | from J P G'.