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HIS ROYAL HIGHNESS PRINCE ALBERT,

Lord Warden of the Stannaries, Chief Steward of the Duchy of Cornwall

and Devon, &c. &c.

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HENRY ENGLISH, MINING ENGINEER,

Editor of the Mining Journal," &c. &c.

LONDON:

PUBLISHED AT THE MINING JOURNAL OFFICE, 26, FLEET STREET.

Printed by J. & H. Cox (Brothers), 74 & 75, Great Queen Street,

Lincoln's-Inn Fields.

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Chief Steward of the Duchy of Cornwall and Devon, &c. &c.

MAY IT PLEASE YOUR ROYAL HIGHNESS,

In respectfully dedicating the present volume of the MINING ALMANACK to your Royal Highness, permit me most gratefully to acknowledge the condescension afforded by your august sanction and patronage; while I sincerely trust the utility of the work, and the information collated, will be considered deserving the support with which it is so highly honoured.

The bright example thus set by your Royal Highness, in fostering science and upholding the interests of the mining community, cannot but be attended with beneficial results ; while it will ever be gratifying to me to reflect on having

been the humble instrument of thus contributing towards the advancement of science as associated with mining enterprise.

This additional proof of the interest manifested by your Royal Highness in promoting mining operations cannot be too highly appreciated by the miner, as affording an assurance that the welfare of our home mines will be carefully watched

over and protected.

I have the honour,

With every grateful feeling and respect,

To subscribe myself,
Your Royal Highness's

Most obedient, humble servant,

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CONTENT S.

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PART III.-ORIGINAL PAPERS.

Jurisdiction and Practice of the Stannaries Courts. By H. S. Stokes, Esq.

105

On the Utility of a knowledge of Engineering, &c. By P. N. Johnson,

F.R.S., F.G.S., &c.

116

On the Economy of Mining in Cornwaii

. By James Sims, M.E.

On the Application of Geological Science. By T. Sopwith, Esq., F.R.S., &c. 130

On the Duties and Acquirements of Engineers. By E. Hopkins, C.E., F.G.S. 133

On the Newcastle and Durham Coal-Fields. By M. Dunn, Esq., M.E.

137

On the Custom of Tin Bounds. By E. Smirke, Esq.

154

Societies for the Improvement of the Working Miner and Collier. "By the

Editor

158

Records of Ancient Mining. By J. y. Watson, Esq., F.G.S.

162

Rise and Progress of the Cornish Steam-engine. _By James Sims, M.E. 170

On the Structure of the Crystalline Rocks. By E. Hopkins, C.E., F.G.S. 176

On Applying Atmospheric Exhaustion to Mining and Engineering Works. By

T. Clark, C.E.

181

Benevolent Institutions connected with Mining Industry. By the Editor 190

On the Superficial Production of Gold, Oxide of Tin, &c. By E. Hopkins,

C.E., F.G.S.

192

On the Utility of a Knowledge of Assaying and Analysis in the Treatment of

Metallic Ores in the Smelting Process. By P.N. Johnson, F.R.S., F.G.S., &c. 197

Explosions of Fire-Damp connected with Fails in the Barometer. By Professor

D. T. Ansted, &c.

199

On the General Character of the Crystalline Rocks called "Primary." By

E. Hopkins, C.E., F.G.S.

On Tin Ores and Black Tin. By P. N. Johnson, F.R.S., F.G.S., &c.

On Gold Deposits and Washings. By José E. Cliffe, M.D., F.G.S.

On Accidents in Mines. By the Editor

213

On Iron in the form of Wire, as a Substitute for Hemp. By the Editor 222

Improvements in Generating Steam and Evaporating Fluids. By the Editor 231

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