2017 Reprint of 1939 Edition.  Full facsimile of the original edition, not reproduced with Optical Recognition software.   The author believes in the nature of certain cyclical climatic forces which seem to influence our outlook and behavior. Smith provides intricate charts showing how rain and weather influence the rise and fall of market prices and sales. He maintains that certain situations follow a ten year pattern. Certainly not for the average investor who hopes to find a new trick, but perhaps better suited for the research minded who want to apply intricate mathematical suppositions and theories to an interesting field.