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extensive circulation, but that eventually it would come into general use. At the present time it is a work of reference in every laboratory in Europe and America ; moreover, numbers of copies have found their way to Australia.

The truthfulness of its results are daily witnessed, for it enables the mere beginner to discover the presence of Antimony, Arsenic, Bismuth, Chromium, Cobalt, Copper, Lead, Magnesia, Manganese, Mercury, Selenium, Silver, Soda, Strontia, Sulphur, and Zinc, and a skilful operator can prove infallibly the presence of a still greater number of substances.

Dr. MUSPRATT takes this opportunity of expressing his best thanks to his talented student, Mr. E. E. HOLDEN, for the valuable assistance he has rendered him in preparing this work for the press.

College of Chemistry, Liverpool,

October, 1854.

CONTENT S.

SECTION I.

DESCRIPTION OF THE BLOWPIPE, MANIPULATING APPARATUS,

ET CETERA.

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I. THE BLOWPIPE ...

II. THE COMBUSTIBLE MATERIAL

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III. THE BLOWING, ET CETERA, AND DESCRIPTION OF THE FLAME

The Oxidation Flame ...

The Reduction Flame ...
IV. THE SUPPORTS :-

1. Charcoal ...
2. Platinum Wire
3. Platinum Foil
4. Glass Tubes
5. Glass Flasks
6. Platinum Spoons
7. Clay Basins
8. Clay Crucibles
9. Soda-Paper...

10. A Mixture of seven parts of Charcoal, with one part of Clay ...
V. INSTRUMENTS, ET OETERA, REQUISITE IN ANALYSIS WITH THE BLOWPI

1. A Balance ...
2. A set of Weights
3. A Microscope
4. Forceps ...
5. A Mortar and Pestle of Agate, or Calcedony

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