234
Lead, 238
Copper, 248
Antimony, 256
Arsenic, 260
Mercury, 262
Silver, 264

* * * * *

PREFACE.

It is believed the arrangement of the present work is superior to that
of many of its predecessors, as a vehicle for the facilitation of the
student's progress. While it does not pretend to any other rank than
as an introduction to the larger works, it is hoped that the
arrangement of its matter is such that the beginner may more readily
comprehend the entire subject of Blowpipe Analysis than if he were to
begin his studies by the perusal of the more copious works of
Berzelius and Plattner.

When the student shall have gone through these pages, and repeated the
various reactions described, then he will be fully prepared to enter
upon the study of the larger works. To progress through them will then
be but a comparatively easy task.

The arrangement of this little work has been such as the author and
his friends have considered the best that could be devised for the
purpose of facilitating the progress of the student. Whether we have
succeeded is left for the public to decide. The author is indebted to
several of his friends for valuable contributions and suggestions.

S.

CINCINNATI, _June, 1857_.

* * * * *

THE BLOWPIPE.

* * * * *

Part First.

THE USE OF THE BLOWPIPE.

Perhaps during the last fifty years, no department of chemistry has
been so enriched as that relating to analysis by means of the
Blowpipe.

Through the unwearied exertions of men of science, the use of this
instrument has arrived to such a degree of perfection, that we have a
right to term its use, "Analysis in the _dry_ way," in contradistinction
to analysis "in the _wet_ way." The manipulations are so simple and
expeditious, and the results so clear and characteristic, that the
Blowpipe analysis not only verifies and completes the results of
analysis in the wet way, but it gives in many cases direct evidences
of the presence or absence of many substances, which would not be