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THE

SUBJECT MATTER

OF A

COURSE OF SIX LECTURES

ON THE

NON-METALLIC ELEMENTS.

BY

PROFESSOR FARADAY.

DELIVERED BEFORE THE MEMBERS OF THE ROYAL INSTITUTION,

IN THE SPRING AND SUMMER OF 1852.

ARRANGED, BY PERMISSION, FROM THE LECTURER'S NOTES, LENT FOR THE OCCASIOK

BODI

BY

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J. SCOFFERN, M.B.,
Late Professor of Chemistry at the Aldersgate College of Medici

TO WHICH IS APPENDED,

REMARKS ON THE QUALITY AND TENDENCIES OF CHEMICAL PHILOSOPHY, ON
ALLOTROPISM, AND OZONE; TOGETHER WITH MANIPULATIVE DETAILS

RELATING TO THE PERFORMANCE OF EXPERIMENTS

INDICATED BY PROFESSOR FARADAY.

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LONDON: PETTER, DUFF, AND CO. PRINTERS,

PLAYHOUSE-YARD, BLACKFRIARS.

A TO

WILLIAM THOMAS BRANDE, ESQ.

OF THE ROYAL MINT,

F.R.S., M.R.I., &c.

Professor of Chemistry at the Royal Institution,

THE FOLLOWING PAGES ARE INSCRIBED, AS A SLIGHT MARK

OF RESPECT AND ESTEEM,

BY

J. SCOFFERN.

Professor Brande's Lectures on the application of Organic Chemistry to the Industrial Arts, are in course of reproduction from his Lecturing Notes, and, with his sanction, they will shortly appear.

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PREFACE.

Had this volume consisted of Professor Faraday's Lectures alone, it might have gone into the literary world without further preface than such as is conveyed in the intimation of its appearance with the fullest sanction and consent of the lecturer. An explanation, however, is rendered necessary, when, as in the present case, an editor intersperses additions of his own.

It may suffice on this topic to state that the extraneous portions of the volume suggested themselves during an interview with Professor Faraday, in the course of which the process of rendering an oral discourse into a literary shape formed the topic of conversation. It was conceded that lectures, for the most part, have reference to others already delivered; that a lecturer frequently indicated

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