This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!
Stethoscope Mine Testing Could Warn of Miners’ Dangers
A proposed coal mine stethoscope would listen for rock sounds to detect weakness and prevent collapses. current cane and pick methods miss some faults, risking fatal roof falls. Hetty Green’s early cash decisions show her frugal, shrewd investing habits as a young heiress. Cats’ bells and early telephony note household signals and national phone use despite population share.
MENTIONED IN THIS ARTICLE
Hetty Green
New York
Hetty
Miss Green