THE

PHILOSOPHICAL MAGAZINE:

COMPREHENDING

THE VARIOUS BRANCHES OF SCIENCE,

THE LIBERAL AND FINE ARTS,

AGRICULTURE, MANUFACTURES,

AND

COMMERCE.

BY ALEXANDER TILLOCH,

HONORARY MEMBER OF THE ROYAL IRISH ACADEMY, &c. &c. &c.

"Nec aranearum fane textus ideo melior, quia ex fe fila gignunt. Nec nofter]
vilior quia ex alienis libamus ut apes." JUST. LIPS. Monit. Polit. lib. i. cap. 1,

VOL. XV.

LONDON:

PRINTED FOR ALEXANDER TILLOCH;

And Sold by Meffrs. RICHARDSON, Cornhill; CADELL and DAVIES, Strand;
LONGMAN and REES, Pater-nofter Row; DEBRETT, Piccadilly;
MURRAY, NO. 32, Fleet-ftreet; SY MONDS, Pater-nofter
Row; BELL, No. 148, Oxford-street; VERNOR

and Hoop, Poultry; HARDING, No. 36,

St. James's-ftreet; BELL and BRADFUTE,
Edinburgh; BRASH and REID, Glasgow;
and W. GILBERT, Dublin.

[Wilks and Tayler, Printers, Chancery-Lane.]

I. ON Indian Dogs. By Dr. BARTON, of Philadelphia

Page 1

9

12

II. An Account of a new Method of fupplying Diving-bells

with fresh Air. By ROBERT HEALY, A.B

III. On Painting. By Mr. E. DAYES, Painter

IV. Experiments on the Colouring and Mordant Property of

the Oxide of Molybdena. By M. D. JAEGER

15

V. Remarks on the prefent State of Aeroflation. By Mr.

G. J. WRIGHT

-

19

32

VI. A Sketch of the Geography of Cochin China; fome Par-

ticulars relative to the Manners, Cufloms, and Hiflory of

the Inhabitants; and a few Confiderations on the Import-

ance of forming an Establishment in that Country

VII. Report prefented to the Class of the Exact Sciences of

the Academy of Turin, 15th August 1802, in regard to

the Galvanic Experiments made by C. VASSALI-EANDI,

GIULIO, and Rossi, on the 10th and 14th of the

Jame Month, on the Head and Trunk of three Men a fhort

Time after their Decapitation. By C. GIULIO 38

VIII. A Review of fome Experiments which have been fup-

pofed to disprove the Materiality of Heat. By WILLIAM

HENRY

45

IX. Report made to the Philofophical and Mathematical

Clafs of the French National Inflitute in the Sitting of Au-

gust 18, entitled A Tour to Upper Egypt above the Cata-

racts of Sienne, with Obfervations on the different Kinds

of Senna ufed in Commerce. By C. DESSESSARTZ and

VENTENAT

'55

X. Biographical Account of MATTHEW BOULTON, Efq. 59

XI. On the Effects of Elder in preferving Plants from Infects

and Flies. By M. CHRISTOPHE GULLET
63

XII. Reply to a Charge of Plagiarifn, brought by Mr.

HENRY CLARKE against W. DICKSON, LL. D. Com-

municated in a Letter from the latter to Mr. TILLOCH 65

XIII. A general View of the Coal Mines worked in France,

of their different Products, and the Means of circulating

them. By C. LEFEBVRE, Member of the Council of

Mines, of the Philomatic Society, &c. &c.

VOL. XV. No. 60.

70

XIV. On

XIV. On Canals. By THOMAS TELFORD, Efq.

XV. Proceedings of Learned Societies

XVI. Intelligence and Mifcellaneous Articles

89

94

97

XVII. Defcription of Mr. PEPYSs's large Galvanic Ap-

paratus

XVIII. An Effay on the Method of determining the Difference

of Longitude between Places at Land, from the obferved

Tranfits of the Moon over their Meridians; with a De-

monftration and Example. By Mr. GAVIN LOWE

XIX. On the Preparation of the Hyacinthus non fcriptus, or

common Blue-Bell, as a Subftitute for Gum-Arabic. By

Mr. THOMAS WILLIS, of Lime-Street, London 103

XX. On the Edulcoration of Fifb-Oil. By ROBERT Dos-

SIE, Efq.

XXI. On Painting. By Mr. E. DAYES, Painter 115

XXII. Memoir on the comparative Anatomy of the Electric

Organs of the Torpedo, the Gymnotus electricus and Si-

lurus electrices. By E. GEOFFROY

105

126

XXIII. On Indian Dogs. By Dr. BARTON, of Philadelphia

136

XXIV. A short Account of the Improvement in Circular Ar-

chitecture made by Colonel TATHAM
143

XXV. On the Freezing Point of Tin, and the Boiling Point

of Mercury; with a Defcription of a Self-registering Ther-

mometer invented by Mr. JAMES CRICHTON, of Glaf-

147

XXVI. Memoir on, the Chemical Nature of Ants, and the

Jimultaneous Exiflence of two Vegetable Acids in theje In-

Jets. By A. F. FOURCROY
148

XXVII. On the Property which the Acetic Acid poffeffes of

diffolving Camphor and various effential Oils
156

XXVIII. A general View of the Coal Mines worked in

France, of their different Products, and the Means of circu-

lating them. By C. LEFEBVRE, Member of the Council

of Mines, of the Philomotic Society, &c. &c.

XXIX. Sketch of the General Higlory of Mining

XXX. On the Converfion of Grafs Land into Tillage, &c.

158

164

167

XXXI. Hiflory of Aftronomy for the Year 1802. Read in the

Athen cum of Paris, Dec. 30, y JEROME LALANDE 172

XXXII. Notices refpeding New Books

180

181

190

XXXIII. Proceedings of Learned Societies

XXXIV. Intelligence and Miscellaneous Articles

XXXV. Letter from Dr. BARTON to Profeffer ZIMMER-

MANN, on the fafcinating Faculty which has been ajcribed

to the Rattijnake, and other American Serpents 193

XXXVI. 06-

XXXVI. Obfervations on the different Theories of Philofophers

to explain the Phænomena of Combuftion. By CHARLES

PORTAL, Efq.
Page 202

XXXVII. Hiftory of Aftronomy for the Year 1802. Read in

the Athenæum of Paris December 30, by JEROME LA-

LANDE

209

219

XXXVIII. On the Disappearance of Saturn's Ring in the

Year 1803. By Profeffor J. E. BODE

XXXIX. On the Disappearance of the Ring of Saturn. By

VAN BEECK CALKOEN, Profeffor of Aftronomy at Ley-

-

222

den

XL. Memoir on the Foffil Caout-Chouc, or Elaftic Bitumen

of Derbyshire. By FAUJAS-SAINT-FOND
225

XLI. A general View of the Coal Mines worked in France,

of their different Products, and the Means of circulating

them. By C. LEFEBVRE, Member of the Council of

Mines, of the Philomatic Society, &c. &c.
234

XLII. On a new Kind of Painting with the Serum or

watery Part of the Blood. By F. CARBONEL, M.D.

of Barcelona

240

XLIII. On the Kind of Air-Furnaces employed in Iron Foun-

dries for cafting large Pieces of Ordnance, Shafts for Mills,

Cylinders, and other heavy Articles. By Mr. DAVID

MUSHET, of the Calder Iron Works

245

XLIV. Obfervations on the Freezing of Water and the Na-

ture of Snow: in a Letter from Profeffor DRIESSEN to

Dr. VAN MARUM

249

XLV. Obfervations on the Lotus of Egypt. By ALIRE

RAFFENAU-DELILE, Member of the Inflitute of Egypt

257

XLVI. Memoir on fome Peculiarities in the Anatomy and

Phyfiology of the Shark, particularly refpecting the Pro-

duction of its Young. By Dr. MITCHILL, of New York

264

XLVII. On the Management and Improvement, by Tillage,

of old Grafs Lands on a direct Clay, fuch as is found in

the Wilds of Surrey and Suffex

XLVIII. Some Account of GEORGE PEARSON, M. D.

F.R. S. &c. &c. with a Portrait from an original Painting

XLIX. Notices refpecting New Books

L. Proceedings of Learned Societies

LI. Intelligence and Mifcellaneous Articles

268

274

277

281

283

LII. Letter from Dr. OLBERS of Bremen to Baron VON

ZACH, on the Stones which have fallen from the Hea-

sens

289

LIII. On