our tracing out half his wonders, even in the things nearest to our
senses, and most constantly subject to observation. M. Mace will help,
and not hinder the humility with which the Christian naturalist lifts
one veil only to recognise another beyond.

It will be satisfactory to any one who may be inclined to wonder how
a lady can feel sure of having correctly translated the various
scientific and anatomical statements contained in the volume, to know
that the whole has been submitted to the careful revision of a medical
friend, to whom I have reason to be very grateful for valuable
explanations and corrections whenever they were necessary. In the same
way the chapter on "Atmospheric Pressure," where, owing to the
difference between French and English weights and measures, several
alterations of illustrations, etc., had to be made, has received similar
kind offices from the hands of a competent mathematician.

* * * * *

MARGARET GATTY.

Ecclesfield, June, 1864.




NOTE TO THE AMERICAN EDITION.

In May '66, the seventeenth edition of this work was on sale in Paris.
The date of Mrs. Gatty's preface, it will be observed, is June '64,
and at that time, the eighth French edition only had been reached.