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Dedication of the Third Edition.
TO
THOMAS GRAHAM, ESQ.,
PROFESSOR OF CHEMISTRY IN THE LONDON UNIVERSITY,
F. R. S., &c. &c.,
This Work is Dedicated,
AS A TESTIMONY OF
HIGH RESPECT FOR HIS PROFESSIONAL ABILITIES,
AND ESTEEM FOR HIS PRIVATE WORTH,
BY
HIS OBLIGED AND FAITHFUL FRIEND,
THE AUTHOR.
