HEINEMANN'S SCIENTIFIC HANDBOOKS.
THE BIOLOGICAL PROBLEM OF TO-DAY: Preformation or Epigenesis? Authorised Translation from the German of Prof. Dr. Oscar Hertwig, of the University of Berlin. By P. Chalmers Mitchell, M.A., Oxon. With a Preface by the Translator. Crown 8vo. 3s. 6d.
MANUAL OF BACTERIOLOGY. By A. B. Griffiths, Ph.D., F.R.S. (Edin.), F.C.S. Crown 8vo, cloth, Illustrated. 7s. 6d. Pharmaceutical Journal.—"The subject is treated more thoroughly and completely than in any similar work published in this country."
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, &c. By A. B. Griffiths, Ph.D., F.R.S. (Edin.), F.C.S. Crown 8vo, cloth. Illustrated, 7s. 6d.
GEODESY. By J. Howard Gore. Crown 8vo, cloth, Illustrated, 5s.
THE PHYSICAL PROPERTIES OF GASES. By Arthur L. Kimball, of the Johns Hopkins University. Crown 8vo, cloth, Illustrated, 5s.
HEAT AS A FORM OF ENERGY. By Professor R. H. Thurston, of Cornell University. Crown 8vo, cloth, Illustrated, 5s.