THE ROYAL ROAD TO HEALTH OR THE SECRET OF HEALTH WITHOUT DRUGS. BY CHAS. A. TYRRELL, M. D. Registered Number 2646 Proprietor of Tyrrell’s Hygienic Institute. Inventor of the “J. B. L. Cascade,” Professor of Hygiene. Ex-President of the Eclectic Medical Society of the City and County of New York. Originator of the Improved System of Physical Exercises, etc. ONE HUNDRED AND SEVENTIETH EDITION COMPLETELY REVISED, ENLARGED AND ILLUSTRATED PUBLISHED BY CHAS. A. TYRRELL, M. D. 134 W. 65TH STREET, NEW YORK 1917 [Illustration: Chas A Tyrrell md] TO MY WIFE WHOSE ENTHUSIASM, AND UNFLAGGING INTEREST IN ALL MATTERS PERTAINING TO HEALTH IS EXCELLED BY NONE, AND WHO HAS BEEN A FAITHFUL CO-WORKER IN BUILDING UP THE SYSTEM OF TREATING DISEASE BY HYGIENIC METHODS HEREIN SET FORTH, THIS BOOK IS AFFECTIONATELY DEDICATED. COPYRIGHTED, 1907, BY CHARLES A. TYRRELL, M.D. [Illustration: THE DIGESTIVE ORGANS. (_Viewed from the front._)] DESCRIPTION OF THE DIAGRAM ILLUSTRATING THE DIGESTIVE ORGANS OF MAN. 1. Esophagus or Gullet. 2. Cardiac end of Stomach. 3. Pyloric end of Stomach. 4. Duodenum. 5, 6. Convolutions of Small Intestines. 7. Cæcum. 7* Vermiform appendage of Cæcum, called the _appendicula vermiformis_. 8. Ascending Colon. 9, 10. Transverse Colon. 11. Descending Colon. 12. Sigmoid Flexure, the last curve of the Colon before it terminates in the Rectum. 13. Rectum, the terminal part of the Colon. 14. Anus, posterior opening of the alimentary canal, through which the excrements are expelled. 15, 15. Lobes of the Liver, raised and turned back. 16. Hepatic Duct, which carries the bile from the liver to the Cystic and Common Bile Ducts. 17. Cystic Duct. 18. Gall Bladder. 19. Common Bile Duct. 20. Pancreas, the gland which secretes the pancreatic juice. 21. Pancreatic Duct, entering the Duodenum with the Common Bile Duct. * * * * * The illustration here given of the Digestive Apparatus of man represents the organs of food digestion, especially the alimentary canal and glands connected therewith, and to the reader of this book, or to any student of anatomy, it will be found of invaluable service as a reference.