Paper 36 - Transcriber’s Note
Inconsistencies in punctuation have been corrected without note. Inconsistent hyphenation is as per the original.
Contributions from
The Museum of History and Technology:
Paper 37
Screw-Thread Cutting by the
Master-Screw Method Since 1480
Edwin A. Battison
Edwin A. Battison
SCREW-THREAD CUTTING BY THE
MASTER-SCREW METHOD SINCE 1480