Tom Lehrer Sings Pollution 1967

From Cartoon research post.

Modern Sketch 01, January 1934

 

Colgate University digital libraries collection.

Euclid's elements

 

Thanks to the introductory article on Euclid's elements by Time-Price-Research for the link to the Oliver Byrne's startlingly modern rendition with primary colours and clear layout. HERE is the original 1847's book.