Feature

Early Inventors Had Their Troubles

Forest Ranger Invents Traffic Measuring Machine

Impossible to Judge Intelligence from Pictures

Sees Airplane as Plague Carrier

Chestnut Blight Takes Giant Leap

Tuberculosis Deaths Decrease 10 per Cent. in Year Just Ended

Gives $350,000 to Start New Scientific Journal

Learns How Pussy Lands Right Side Up

97814

90303

172942

Pupin, Immigrant Inventor, Heads American Scientists