Feature

Vitamin D Forms Vary

Zoo Gets Three Ancient African Fish via Harvard

London Ape Makes Sketch

[Photograph]: Mobile Substations

Build Powerful Electron Whirler and X-Ray Machine

U. S. Lacks Women Doctors; Blamed on Prejudice

In Science Fields

Cross Glitters Overhead

Study Islander Ideas

Beetle Carriers of Fungus Active; No Aid for Elms

New Machines and Gadgets

Glances at New Books