Londen The Amalgamated Dental Co., , 20 pages, original illustrated paper binding with silhouette of neanderthal man on front, 3 colour and many other illustrations of prehistoric skulls, faces etc. focusses on teeth and that is what this brochure is for: advertisment of The Amalgamated Dental Company, manufacturer of dental appliances in the United Kingdom. very good and clean copy. James Leon Williams (April 18, 1852 – February 23, 1932) was an American prosthodontist and a pioneer dental histologist. He discovered the significance of dental plaque.