I have just read an article by Charles Bosman where he talks about the Stone Age and the subsequent decline of Humanity. I cackled aloud repeatedly when I read "Africana museum". I must say that Smuts and Bosman are inclining me to reading up on all this stuff. When I read this I thought of the ancient cutting stone you found and showed me. I am interested to look into the conflict between the Church and Science of that time period