During the many years that the compiler has had the management of the publishing department of Messrs. Boericke & Tafel—long to look back over, yet short to live—so many inquiries came in for "literature," or, in the form, "where can I find something about" this, that, or the other, remedy, that finally I became convinced that there might be a niche in the great world's already over-crowded library for a book containing, in part, at least, the information desired by my numerous correspondents.展开