Jena, November 23, 1868.
GEORG EBERS, DR.



PREFACE TO THE FOURTH GERMAN EDITION.

Two years and a half after the appearance of the third edition of "An
Egyptian Princess," a fourth was needed. I returned long since from the
journey to the Nile, for which I was preparing while correcting the
proof-sheets of the third edition, and on which I can look back with
special satisfaction. During my residence in Egypt, in 1872-73, a lucky
accident enabled me to make many new discoveries; among them one treasure
of incomparable value, the great hieratic manuscript, which bears my
name. Its publication has just been completed, and it is now in the
library of the Leipzig University.

The Papyrus Ebers, the second in size and the best preserved of all the
ancient Egyptian manuscripts which have come into our possession, was
written in the 16th century B. C., and contains on 110 pages the hermetic
book upon the medicines of the ancient Egyptians, known also to the
Alexandrine Greeks. The god Thoth (Hermes) is called "the guide" of
physicians, and the various writings and treatises of which the work is
composed are revelations from him. In this venerable scroll diagnoses
are made and remedies suggested for the internal and external diseases of
most portions of the human body. With the drugs prescribed are numbers,
according to which they are weighed with weights and measured with hollow
measures, and accompanying the prescriptions are noted the pious axioms
to be repeated by the physician, while compounding and giving them to the
patient. On the second line of the first page of our manuscript, it is