Heinemann's Scientific Handbooks.

MANUAL OF BACTERIOLOGY.
By A. B. Griffiths, Ph.D., F.R.S. (Edin.),
F.C.S. Crown 8vo., Illustrated, 7s. 6d.
MANUAL OF ASSAYING GOLD,
SILVER, COPPER, AND LEAD ORES. By
Walter Lee Brown, B.Sc. Revised, Corrected,
and considerably Enlarged, with a
chapter on the Assaying of Fuel, etc. By
A. B. Griffiths, Ph.D., F.R.S. (Edin.),
F.C.S. Crown 8vo., Illustrated, 7s. 6d.
GEODESY. By J. Howard Gore.
Crown 8vo., Illustrated, 5s.
THE PHYSICAL PROPERTIES
OF GASES. By Arthur L. Kimball, of the
Johns Hopkins University. Crown 8vo.,
Illustrated, 5s.
HEAT AS A FORM OF ENERGY.
By Professor R. H. Thurston, of Cornell
University. Crown 8vo., Illustrated, 5s.

LONDON:
WILLIAM HEINEMANN,
21, BEDFORD STREET, W.C.