The Quarterly Journal

231

235

259

IV. Experiments on the Action of Water upon Glass, with some

Observations on its slow Decomposition. By Mr. T. Grif-

FITHS. (Communicated by the Author.)

Analyses of two Mineral Waters, from Springs in Windsor

Great Park. By W. T. BRANDE, F. R. S., Professor of

Chemistry in the Royal Institution

SON,

264

VI. On the Tyrant Shrikes of America. By WILLIAM SWAIN-

Esq., F.R. and L.S. (Communicated by the Author.) 267

VII. Examination of the Large Achromatic of the Royal Observa-

tory at Paris

286

VIII. Observations on Mr. FRAUNHOFER'S Memoir on the infe-

riority of Reflecting Telescopes when compared with Refractors 288

IX. Letter from M. GAY-LUSSAC to J. F. DANIELL, Esq., F.R.S.,
M.R.I., &c., on the Expansion of Gases by Vapour

294

ART.

PROCEEDINGS OF THE ROYAL SOCIETY

XI. ASTRONOMICAL AND NAUTICAL COLLECTIONS. No. XXIV.
i. Continuation of the Catalogue of Comets, (Coll. No. XVI.) :

By Dr. W. Olbers, Astr. Abh. iii.

ii. Errors in the best Tables of Logarithms; collected from vari-

ous Authorities

iii. Observations on Mr. Mendoza y Rios's Method of computing

the True from the Apparent Lunar Distances. By Thomas Hen-

derson, Esq.

iv. Correct Formula for the Nutation. By Professor Bessel. Astr.

Nachr. 83

v. Remarks on the Principles of Algebraical and Fluxional Nota-

tion. By the Editor

vi. Occultations of the Planets and Fixed Stars not less than the

fourth magnitude, visible at Greenwich in the year 1826. By Tho-

mas Henderson, Esq.

XII.

ANALYSIS OF SCIENTIFIC Books.

I. Philosophical Transactions of the Royal Society of London, for

the year 1825. Part II.

II. Considerations on Volcanoes; the probable Causes of their

Phenomena, the Laws which determine their March, the Disposition

of their Products, and their Connexion with the present State of,

and past History of, the Globe; leading to the Establishment of a

New Theory of the Earth. By G. Poulett Scrope, Esq., Sec.

Geol. Soc., &c.

XIII.

MISCELLANEOUS INTELLIGENCE.

I. MECHANICAL SCIENCE.

1. Effects of an Anti-Attrition Preparation. 2. Strength of

Leaden Pipes. 3. Method of curing Smoky Chimneys. 4. Sug-

gested Improvements in Light-houses. 5. Cuthbert's reflecting

compound and single Microscope. 6. On the alteration in the bulk

of successive portions of Air introduced into a Torricellian Tube.

7. On the attraction manifested at sensible Distances by Solid Sur-

faces moistened by, and immersed in, a Liquid, by M. P. S. Girard.

8. On an unnoticed Mechanical Principle-explanation of the

cutting of Steel by Iron. 9. Magnetic Rotation. 10. On the For-

mation of a Society for the Cultivation of Naval Architecture

II. CHEMICAL SCIENCE.

1. Influence of Solar Light on the Process of Combustion. By

Dr. T. McKeever. 2. On the Simultaneous Action of Gaseous

Oxygen and Alkalis on Organic substances. By M. Chevreul.

3. Thorina, not a distinct Earth, 4. On the Distillation of fatty

Bodies. By M. Dupuy. 5. Variations in the Composition of the

Atmosphere. 6. Action of Carbonic Acid on Hydrosulphurets. By

M. Henry, jun. 7. Inspiration of Inflammable Gas. (Hydrogen?)

By Signor Giacomo Cardone. 8. In a mixture of Muriate of

Potash and Muriate of Soda, to determine the proportions of each.

9. On the Solution of Steel and Iron in Acids, and on the residua

which remain. By M. Karsten. 10. Preservative against Rust.

11. Combinations of Antimony with Chlorine and Sulphur. 12. On

the Detection of Arsenic by Lime Water. 13. Artificial Gold, a

new Alloy. 14. Simple Mode of obtaining Meconiate of Morphia.

15. Rectification of Alcohol at common Temperatures. 16. Hygro-

metric Property of Sulphuric Acid. 17. Simple method of exhibit-

ing the Deflection of the Magnetic Needle by the Electric Current.

18. Necessity of Water in the Preparation of Lead Plaster

III. NATURAL HISTORY.

1. On the Insalubrity of the Air of Marshes, in communication

with the Sea. By M. Gaetano Giorgni. 2. Effects of Lightning

on the Animal System. 3. Investigation of supposed Electric Cur-

rents in the Nerves. 4. Relation of a Case of poisoning caused by

the Honey of the Lecheguana Wasp. By M. Auguste de St.

Hilaire. 5. Loss of Memory. 6. On a peculiar Blue Matter ob-

tained from certain Urines. By M. H. Braconnot. 7. Analysis of

an Urinary Calculus from a Hog. By M. Wurzer. 8. Chinese

Manner of forming Artificial Pearls. 9. Flying-fish in the Channel.

10. Age of a Yew-tree. 11. Phosphate of Lime accompanying

Iron Stone in Coal-beds, (Allier.) 12. Geology of the Severn.

13. On the " Extraordinary Rise of the Rio de la Plata," and on

the Storms of that part of South America. 14. Remarkable Pheno-

mena observed in the Island of Melida, Province of Ragusa.

15. Edinburgh Prize Essay

XIV. METEOROLOGICAL TABLE

TO OUR READERS AND CORRESPONDENTS.

The coals of the vicinity of Bath are very sulphureous-perhaps it is their vapour, and not their light which bleaches Arabella's dresses. The steam of 300° must be issuing with great violence from a small aperture; expansion then so much increases its capacity for heat that it does not scald till the pressure is considerably diminished. Although the steam in the boiler may be 300°, that which first issues is not above 120°.

Mr. W. Jones informs us that, in 1822, he proposed to Messrs. Symons and Co., of Leman-street, a plan precisely similar to Mr. Jeffrey's, for the condensation of smoke: we should be glad to know whether there, or elsewhere, it has been successfully carried into effect?

Captain Jeremie's observations on East India opium have been received, but the sample has not yet reached us.

H. M. is informed that ice evaporates, as well as water.

The hints of our Correspondent at Dover shall be attended to. He is surely wrong respecting our general index.

In reply to a letter dated "Somerset, 22d September, 1825," we refer to what is called a Fossil Human Skeleton, preserved in the British Museum; and to Mr. König's paper on the subject, published in the Philosophical Transactions.

Mr. Van Rensselaer's communication has been received; his former one never came to hand.

We must again decline publishing the Letter of F.R.S., inasmuch as he reasons upon wrong grounds. The Library of the Royal Institution, as well as that of the Royal Society, are both easily accessible, and under certain restrictions, the Fellows of the Society are allowed to take books from the latter.

Several instruments have been invented for the destruction of calculi upon the principle of Colonel Martine's, but there are very few cases which admit of their use.

Communications have been received from Dr. Johnson, Dr. Ure, Mr. Gregory, Mr. Stromeyer, Mr. Faraday, and Mr. Horner.

A copious General Index to the Contents of the first Twenty Volumes of this Journal, which are now completed, is ready for the Press, and will be delivered with the next Number.

THE

QUARTERLY JOURNAL.

October, 1825.

ART. I.-On the Means by which Crabs throw off their Claws. By Dr. Mac Culloch.

SIR,

[In a Letter to the Editor.]

Ir is well known that the tribe of crabs, using this popular term to comprise many genera of modern naturalists, have the power of parting with their claws by a voluntary effort; and they are thus frequently taken, with one or more of these deficient, or of an inferior size to the rest, since they have also the power of reproducing them. As the nature of this singular process has never been described, and as it appears, at first sight, as it has always been conceived, a very unaccountable effect of voluntary or muscular power, I am induced to send you a sketch of the anatomy of the parts engaged; with an explanation of the mode in which the animal appears to detach the limbs.

This process appears to be effected by these animals whenever so serious an injury has been committed on any of the extreme phalanges as to render the claw useless; no provision having been apparently made to repair any injury of those parts, although there has been one established for reproducing the whole limb. It is very easy to witness this effect when the animal is recently taken out of the water and in a vigorous state; but a very short time is sufficient, in most species, to render the animal too feeble to perVOL. XX.

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