B. G. Seielstad books & textbook
Popular Science Monthly, vol. 136, no. 3 (September 1939) (Can Frozen Sleep Cure Cancer?; How Will the World End?; Decipher Ancient Love Letters; Queer Jobs of Flying Taxis; Measuring Speed of Light)
Alden P. Armagnac Walter E. Burton R. DeWitt Miller Robert E. Martin Schuyler Van Dyne Raymond J. Brown B. G. Seielstad
Popular Science Publishing Company /1939T Journal / 238 Pages