TRANSCRIBER’S NOTE
Footnote anchors are denoted by [number], and the footnotes have been placed at the end of the book.
The wide tables on relative humidity on pages [69, 70 and 71] are best viewed using a small font on a handheld device
New original cover art included with this eBook is granted to the public domain.
Some minor changes to the text are noted at the [end of the book.] These are indicated by a dashed blue underline.
THE NEW AIR WORLD
Fig. 4.—Instrument Shelter. Frontispiece.
([Page 66])
THE
NEW AIR WORLD