Airplane Propeller Manufacture
Problems Which Have Been or Need to be Studied
Problems Which Have Been or Need to be Studied
The Rational Causes of Variations in Our Summers and Winters
Results of Experience With Slow-Speed Land Engines, Perhaps Useful Also in Designing Other Types
A Study in the Psycho-biology of Various Ants
Old Hand-Block Printing Contrasted With Present Expensive Power Machines
Remarkable Improvements During War and Applications to Peace-Time Needs
Orienting Effects of Monochromatic Light on Fucus Spores and Rhyzoids
Collecting, Preparing and Shipping Chicle Gum for the United States
New Methods for “Lifting” or Transferring Fingerprints on Objects by Prepared Paper or Foils