Feature

Front Matter

Latin America Menaced by Disease Causing Blindness

[Photograph]: Neptune’s Bodyguard

White Men Copy Indians Who First Copied Them

Magnesium Cement Developed Having Hardness of Granite

Huxley Says Birth Control Threatens World Depopulation

Laborers Can Be Taught to Make Most of Energy

Mystery of Prehistoric Clay Figures Is Believed Solved

Setting the World to Streamlines

In Science Fields

Motion of the Fixed Stars: “A Classic of Science”

Gibbon-like Animal Declared Ancestor of Both Man and Ape