```markdown The book title here is a study about this subject, so as to give a full detailed account of it. The writer of this book, who was educated in an institution of higher learning, is well qualified to deal with this subject. In order that this book might be comprehensible to a great many people, the author has tried to simplify the language so that the layman can understand it, and also the student of this subject. The title, and introduction of the book also, tell of the nature of the contents and give an idea of the scope.