"In my years of practice as a physician, I have, by the use of Astrology, been able to very quickly locate the seat of the disease, the cause of the trouble, the time when the patient began to feel uncomfortable, as based on the birth data of the patient, and this without even touching or examining the patient, and my intense desire to get this knowledge and wisdom before students and Healers in a classified form, is the reason for this Encyclopaedia. . . . When once you have discovered the cause of the disease, and understand its philosophy and the relation of the patient to the great Scheme of Nature, the matter of treatment I leave to you, and according to the System and Methods you may be using." (pg. 502) This is not only the best book ever written on medical astrology, it is also the best medieval medical reference ever put in print. This book excels in diagnosis, in other words, if the symptom is X, then the astrological cause is Y. Which becomes the key to reading the patient's chart, or his decumbiture. Cornell writes in traditional language. The same language, in fact, as you will find in Culpeper, Saunders, Lilly, Blagrave and many others. This book is the key that will open these and many more. Howard Leslie Cornell, M.D., (1872-1938) was a naturopathic physician with a practice in the US and India. In 1918 he set about to compile the medical references in his many astrology books. As he himself wrote, it became a momentous task, eventually comprising two large ledgers. These were then arranged, classified, disentangled and wrote into readable form. Only at that point did he consider making a proper book of it, and set about retyping and rearranging yet again. The result of 15 years work was published in 1933. It has been in print, off and on, ever since. It remains the one indispensable medical astrology book. The Encyclopaedia of Medical Astrology repays close study. A page-by-page reading is most rewarding.