The SciencesSeptember 6, 1919
Selecting Wood for Airplanes
A Discussion of Considerations Necessary in Selecting Materials and the Effects of Some Hidden Defects
Stories by Arthur Koehler
The SciencesSeptember 7, 1918
The “Grain” of Wood
With Reference to Direction of Fibre
The SciencesMarch 4, 1916
Wood older than the Hills
Interesting Specimens Found in Glacial Deposits