Skip to main content


The Hydrogen Bomb

Presenting an account of the theoretical background of the weapon and a discussion of some questions it has raised in regard to our present policy of security

By Louis N. Ridenour

Point Four

The President's declaration of last year paraphrases a whole concept of maintaining the peace of the world through technical assistance to underdeveloped areas

By Stephen Raushenbush

Blood Pigments

Hemoglobin is red, hemocyanin is blue, chlorocruorin is both red and green. All are studied together because they perform the same function in rather dissimilar organisms

By H. Munro Fox

Cortisone and ACTH

The startling results of their administration in several rather different diseases suggest the beginnings of a unified theory of medicine

By George W. Gray

Experimental Neuroses

In which cats (1) learn complex patterns of behavior, (2) are subjected to contradictory influences and (3) develop neuroses which are relieved by psychotherapy

By Jules H. Masserman

Hot Atom Chemistry

The molecular combination of radioactive and stable atoms results in some bizarre and potentially useful chemical reactions

By Willard F. Libby

Plant Tissue Cultures

The individuality of cells is obscured by their social organization. The cells of certain plants are therefore isolated and grown in a controlled asocial environment

By Philip R. White

Obstetrical Labor

The forces that propel an infant into the world have now been measured precisely by a technique largely developed for experimental engineering

By Samuel R. M. Reynolds


  • 50 and 100 Years Ago: March 1950

  • Science and the Citizen: March 1950

  • Letters

    Letters to the Editors, March 1950

  • Recommended


  • Amateur Scientist

    The Amateur Astronomer

  • Departments


Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
Scroll To Top