Feature

What to Read to Learn. More about “Technocracy”

Hybrid Macaw Developed “Throwback” Feathers

First Glances at New Books

Front Matter

New Ocean Phone Circuits to Bind Nations More Closely

Invisible Light from Flat-Irons Takes Picture

Aerial Photography Taught at Harvard University

Vital Glands Preserve Life by Keeping up Blood Volume

Research Shows How Copper Aids Iron in Curing Anemia

Pollen Extract Oxidized for Hay Fever Treatment

Man Has Too Much Brain and Not Enough Jaw

[Photograph]: New Wonders for Tourists