The SciencesMarch 16, 1918
The Crust of the Earth
Its Composition and Structure
Stories by Stanley C. Bailey
The SciencesApril 15, 1916
Animals with Many Eyes
Varied and Curious Organs of Special Development
The SciencesAugust 21, 1909
Topographical and other Models
How They are Made
The SciencesNovember 28, 1908
Can Precious Stones be Manufactured?
The Chemistry of Gems
The SciencesMay 9, 1908
The Meaning of Millions