1920 Article Portable Coalometer Coal Pile Leakage Instrument A. W. Browne SCA3 HUTT1 This is an original 1920

This is an original 1920 black and white print ad promoting Sanitas Wall Covering from Standard Textile Products Company located at 320 Broadway

part of the second class deck

"Steve Hatalla has a few words to say about life and liberty

Technology

1920 Article Portable Coalometer Coal Pile Leakage Instrument A. W. Browne SCA3 HUTT1 This is an original 1920This is an original 1920 one page article (one single sided page), "Detecting and Preventing Leakage in the Soft Coal Pile" by R. P. Nichols featuring an image of the details and installation of the Coalometer, an instrument developed from a joint intervention of Mr. A. W. Browne, Professor of Chemistry at Cornell University, and one of the America's leading scientists. This instrument detects heat losses in the soft coal pile. CONDITION This 91+ year