Four Scientific Principles by Sheldon Knapp
1924. No Edition Remarks. 90 pages. No dust jacket. Grey cloth boards with gilt lettering to front. Black and white illustrations throughout. Introduction by Henry Thomas Hamblin. Pages and binding are presentable with no major defects. Minor issues present such as mild cracking, mild tanning and occasional foxing. Boards have mild edge wear with light rubbing and crushing. Some light marking and tanning causing discolouration. There is bumping to corners.