HEROES OF SCIENCE.
Crown 8vo. Cloth boards, 4s. each.
ASTRONOMERS. By E. J. C. Morton, B.A. With numerous diagrams.
BOTANISTS, ZOOLOGISTS, AND GEOLOGISTS. By Professor P. Martin Duncan, F.R.S., &c.
CHEMISTS. By M. M. Pattison Muir, Esq., F.R.S.E. With several diagrams.