Ancient Theories

The great scientists Louis Pasteur (1822-1893) and Joseph Lister (1827-1912) revolutionized medical practice in the 19th century. Pasteur's discovery of the cause of fermentation formed the basis of modern germ theory while Lister developed antiseptic surgical methods based on that. The book contains a description of the theory, and accounts of their work and experiments.

The world is filled with mysteries, and even in the modern age, much of the planet remains unexplored. The depths of the oceans and the intricate and extensive cave systems that honeycomb some parts of the Earth are still largely unknown. Thus, it should come as no surprise that when it comes to this terra incognita, people have projected all sorts of ideas. Tales of sunken cities or lost civilizations are just some of the fanciful theories, and those could even be considered tame in comparison to the idea that Earth is flat.