The following pages seek to do something towards explaining the origin and meaning of the word "Tyler," and also to describe the duties that appertain to the official who guards the doorway. Additionally... The Masonic Apron, as the badge common to all the brotherhood, has much to inspire reflection, and in the following pages I have brought together one or two thoughts upon the subject in the hope that they may be of use to members of the Craft.

William Harvey's On the Motion of the Heart and Blood in Animals is a classic work of the scientific revolution and of modern medicine, for in it he famously argued, with extensive evidence based on dissections and vivisections, for the circulation of the blood. It also overturned the longstanding theories of the heart's movement and function. This new edition is suitable for classroom use and for general interest. In addition to an updated translation, it also contains an introductory essay and footnotes. ""Professor Carty's excellent new edition of William Harvey's classic treatise will...