A treasury of fascinating information on a large variety of subjects. Both small and great things are dealt with. Some of the subjects are more entertaining than useful, while others are more useful than entertaining. Often the footnotes are the most interesting part of a book. The author has not used them, he notes, because, in a sense, this book is composed largely of interesting footnotes. This book is the fruit of curiosity. The author wrote it to satisfy his own curiosity, and hopes that in passing along the results of his studies, he may share with others some of the pleasure and profit of his work.