This carefully crafted ebook: and "49 Tales of The Thinking Machine (49 detective stories featuring Professor Augustus S. F. X. Van Dusen, also known as and "The Thinking Machine and ") and " is formatted for your eReader with a functional and detailed table of contents. Professor Van Dusen . is a fictional character in a series of detective short stories and two novels by Jacques Futrelle. Some of the short stories were originally published in The Saturday Evening Post and the Boston American. In the stories Professor Van Dusen solves a variety of different mysteries together with his friend Hutchinson Hatch, reporter of a fictional newspaper called and "The Daily New Yorker and ". The professor is known as the and "Thinking Machine and ", solving problems by the remorseless application of logic. His catchphrases include, and "Two and two always equal four, and " and "Nothing is impossible and ", and and "All things that start must go somewhere. and "