TO OUR READERS AND CORRESPONDENTS.

The best answer to F. R. S. is the insertion of Dr. Wollaston's paper.

All that is important in Mr. R.'s paper has been said fifty times by other
persons. We cannot undertake to forward communications to other
journals, and request in future that such letters may be franked.

We have been obliged to postpone the insertion of the Wiseman Papers,
in consequence of the lamented death of our correspondent, Mr. Wadd.

We must decline the letter on Naval Affairs.

We have seen Dr. Graham's Catechism: it is not so good as Parkes's ;

and what is worse, is a piracy upon the title of that deservedly popular

work.

Just Published for the Use of Students,

A COLLECTION OF CHEMICAL TABLES OF EQUIVALENTS;

ALSO,

OUTLINES OF GEOLOGY;

BY W. T. BRANDE, F. R. S., &c.

A New Edition of

MR. BRANDE'S MANUAL OF CHEMISTRY

IS NOW IN THE PRESS.

CONTENTS.

OBSERVATIONS on the Relations which exist between the Force,

Construction, and Sailing Qualities of Ships of the Line

On Siliceous Gravel. By ROBERT VENABLES, M.B.

Page

- 219

On the Word Bedolah, or Bedolach. By Dr. J. J. SCHMIDT, of St.

Petersburgh

- 234

-

245

On a Prismatic Structure in Sandstone induced by Artificial Heat;

and on certain Prismatic Rocks found in Nature, including the

Columnar Sandstone of Dunbar. By J. MAC CULLOCH, M.D. &c. 247

Experiments on Indigo

• 265

On the Functions and Structure of Plants. By G. T. BURNETT, Esq. 279

Streets of the Metropolis

Analysis of a New Mineral, containing a hitherto unknown Earth.

By JACOB BERZelius

-

293

- 296

Notice on the Observations of the Comet of Encke, during its Ap-

pearance in 1828. By M. STRUVE

Observations on Quinia, or Quinine, and on the Preparations of

Cinchonia. By J. HANCOCK, M.D.

-

302

- 306

Some Notices of the great Storm and Flood which occurred in the

counties of Aberdeen, Banff, Elgin, and Nairn, and parts of Mearns,

Angus, Perth, and Inverness, on the 3d and 4th of August, 1829 328

Observations on the Teeth of the Erinaceus Europæus, Urchin, or

common Hedgehog

Illustrations of the Quadrupeda, or Quadrupeds, being the arrange-

ment of the four-footed Beasts indicated in outline. By G.

T. BURNETT, Esq.

Chemical Observations. By THOMAS GRAHAM, A.M., F.R.S.E. &c. 354

Geological Survey of the Island of Jersey. By Lieutenant NELSON,

R.E., Cor. Mem. of the Plymouth Ins.

- 359

On Achromatic Telescopes. By Mr. ROGERS (of Leith). -

Chemical Examination of a Native Arseniuret of Manganese. By

ROBERT JOHN KANE, Esq.

- 379

381

A Plan for Improving the Carriage Pavement of the Metropolis. By

Lieutenant J. H. BROWN, R.N.

On some Pharmaceutical Preparations of Iron, and particularly the

Tartrates. By ANDREW URE, M.D., F.R.S., &c.

- 388