Barometrical observations on the depth of the mines in the Hartz.
By: By John Andrew De Luc, F.R.S. ; Read at the Royal Society, March 20, 1777.
Publisher: Printed by W. Bowyer and J. Nichols.
Place of publication: London
Number of pages: 49
Subjects: Mines and mineral resources -- Germany -- Harz Mountains.; Barometers.
Notes: Verso of t.p. and final page blank.

A parallel French version appears at the foot of each page.

ESTC t114107