The pneumatics
Resumo
Editor's preface -hile the editor of the present work was engaged
in writing an analytical history of the
steam-engme, it became necessary to consult
the antient mechanicians to ascertain who were
the inventors of the several parts composing
that machine : the earliest writer on the subject appeared to
be hero of alexandria ; throughout whose work so many of
the elementary parts of all steam-engines, and those also of
most other machines are mentioned, that it was thought a
translation of hero's pneumatics would be acceptable not only
to the engineer but to the scientific world generally.