Autograph letter, signed, to J. N. Whitaker
Murchison's Cataracts, 10 December 1863,
At the time of writing, Livingstone was waiting for rains to raise the water level in the Shire River that would enable his boat, the Pioneer, to pass the cataracts and return to the coast.
3 pages, 8vo, lined paper, detailing the features of the thermometer he used for measuring soil temperature ("...the scale was made of box wood & had a hinge 2 or 3 inches above the bulb..."), with a sketch, explaining the basic requirements of a thermometer to take similar measurements ("...any thermometer which allows separation of the bulb from the case will do...") and suggesting manufacturers, ink slightly faded, remains of mount on final blank.
Provenance
Delivery
We offer secure and express delivery on all local and international orders of rare books, maps and prints placed through this website.