NOTAS BIBLIOGRAFICAS

Resumen

PLANT PROPAGATION, por John P. Mahlstede y Ernest S. Haber. 41 3 pp. y 160
ilustraciones. John Willey & Son, Inc. 440 Fourth Avenue, New York 16,
N.Y. U.S.A. 1956

BIOCHEMICAL INDIVIDUALITY, por Roger J. Williams. John W iley & Sons,
Inc. 440 Fourtl1 Avenue, New York 16, N .Y., U.S.A. 1956.

PSYCHOLOGY, EVOLUTION AND SEX. Cecil P. Martin, M.A., MB .. SC.D.
1956. Charles C. Thomas. Publisher, Springfield, Illinois, U.S.A. 166 pp.

DIGESTION Y ABSORCION . Rafael Sentmanat, 1957.- Publicaciones Cultural, S. A. La H aban a. Cuba. 226 pp.

THE FIRST ONE H UNDRED AND FIFTY YEARS. A History of John Wiley and
Son s, Inc.- 1957.-New York, U.S.A. 242 pp.

A TEXTBOOK OF ENTOMOLOGY. ROSS, HERBERT H. 1956. Segunda Edici6n.
519 pp., 402 figs. New Yor k. John Wiley & Hall Limited . London.

T HE GENESIS OF THE RAT SKELETON. A LABORATORY par D onald G.
Walker y Zolton T. Wirtscbafter. Fotograf(a par Dean Altman y caligrafta pa r
L loyd J . Reyno lds. Charles C. Thomas, Springfield, Il linois. Precio 7 .50 d6lares.