London, Royal Society of London, 1868.
Octavo, [ii], -364 pages plus a map of Australia (with 'the Route & Principal Stations proposed' printed in red).
Plain light brown wrappers, sewn as issued; wrappers lightly marked; an excellent copy.
'From the Proceedings of the Royal Society of London, No. 102, 1868' is printed at the head of the title page. Neumayer here seeks support for an expedition to search for Leichhardt and to complete his ambitious plans; he was unsuccessful in his attempt. Ferguson 13146; McLaren 14012.