Front matter
Reading edition
Scanned by Charles Keller with OmniPage Professional OCR
NOTE: degrees A (Absolute?) is the same as the current degrees K (Kelvin).
THE POPULAR SCIENCE MONTHLY VOLUME LXXXVI JULY TO SEPTEMBER, 1915
Reading edition
Scanned by Charles Keller with OmniPage Professional OCR
NOTE: degrees A (Absolute?) is the same as the current degrees K (Kelvin).
THE POPULAR SCIENCE MONTHLY VOLUME LXXXVI JULY TO SEPTEMBER, 1915