Philosophical Magazine

Front Cover
Taylor & Francis, 1870
 

Contents

Prof R S Balls Note on an Elementary Proof of a Theorem
107
F Kohlrauschs Determination of the Absolute Horizontal
114
Mr W H Walenns Remarks on the Atomic Theory
122
Proceedings of the Royal Society
149
On Auroral Appearances and their connexion with the Pheno
159
Mr T T P B Warrens Notes on Professor Fleeming Jenkins
169
Mr E L Garbett on Popular Difficulties in Tide Theory
175
Prof Reusch on Micacombinations
196
Dr W J M Rankine on the Thermal Energy of Molecular
211
Substances
221
A De la Rive on the Organic Dust of the Air
229
On Comets and Meteors by Daniel Kirkwood LL D Professor
233
On a possible Cause of the Gulfstream by Robert Gill Esq
238
APRIL
241
Dr W M Wattss Note on the Temperature and Heating
242
Mr R Moon on the Structure of the Human Ear and on
248
Prof Challis on a new discussion of the Mathematical Theory
260
Prof Hows Contributions to the Mineralogy of Nova Scotia
275
Prof F Guthrie on1
282
The Rev J M Heath on the Circumstances which determine
288
Mr J P Harrison on Solar Radiation in connexion with Cloud
299
Proceedings of the Geological Society
313
F J Pictet on the present state of the question as to
321
Prof J C Draper on an Improvement in Filtration
335
powers of Flames
337
Mr J Dewars Note on Inverted Sugar
345
Captain A R Clarke on the Course of Geodesic Lines on
352
Mr T S Aldis on Goodrickes Theory of Algol
363
A Wüllner on the Spectra of some Gases under High Pres
370
Proceedings of the Geological Society
383
Action of Sodium on Acetic Ether
394
JUNE
401
J Thomsens Thermochemical Researches
410
JULY 1870
1
Page 55 note line 3 from the bottom for observation read operation
4
Archdeacon Pratts Reply to M Delaunays objection to the late
10
Mr A S Davis on a possible Cause of the Bright Line observed
33
Mr S E Phillips on a Simple Method of Constructing high
41
The Rev J M Heath on the Interchangeability of Heat
51
Mr H E Roscoe and Dr T E Thorpe on the Relation
56
Proceedings of the Geological Society
68
On the use of the Electric Current in Calorimetry by M
142
Note to Mr Moons Paper on the Solution of Linear Partial
149
Mr G Gore on the Molecular Movements and Magnetic
170
Prof W Gibbs on the Measurement of Wavelengths by means
177
Mr A S Davis on the Probable Character of Cometary Orbits 183
183
Prof G Luvinis Experiments and Observations on the Adhe
190
Achille Cazin on Internal work in Gases 197
197
The Hon J W Strutts Remarks on a Paper by Dr Sond
211
The Rev J M Heath on the Principles of Thermodynamics 218
218
Proceedings of the Geological Society
225
On the Propagation of Sound in Tubes by M Ad Seebeck 231
231
Chemical Substance and Chemical Functions 259
259
A Cazin on Internal Work in Gases 268
268
Dr W J M Rankine on the Thermodynamic Acceleration
288
S Merz on an Objectglass Spectral apparatus With
294
Mr A S Daviss Addendum to a Theory of Nebula and Comets 300
300
Proceedings of the Geological Society
309
NOVEMBER
313
Tomlinson on a Salt that is invisible in its Motherliquor 328
328
Mr J C Douglass Reply to Mr Templetons Remarks sug
340
Mr F Guthrie on Approach caused by Vibration With
345
Prof Plateaus Experimental and Theoretical Researches into
355
Proceedings of the Royal Society
371
On Leclanchés Manganese elements by J Müller 460
460
Illustrative of Professor Zöllners Paper on the Temperature
468

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Page 166 - ... and the snow, in consequence, would remain unmelted during the entire summer. In fact, we have this very condition of things exemplified, in some of the islands of the Southern Ocean at the present day. Sandwich Land, which is in the same parallel of latitude as the north of Scotland, is covered with ice and snow the entire summer; and in the island of South Georgia, which is in the same parallel as the centre of England, the perpetual snow descends to the very sea-beach. The following is Captain...
Page 355 - ... myth-making tendency — the passion for developing, enlarging, and spreading tales of wonder — came into full play and was given free course. Many thoughtful men satisfied themselves of the truth of these representations. One of the foremost English scholars came over, examined into them, and declared that there could be no doubt as to the reality of the cures. This state of things continued for about four years, when, in 1731, more violent effects showed themselves. Sundry persons approaching...
Page 137 - The ordinary gaseous and ordinary liquid states are, in short, only widely separated forms of the same condition of matter, and may be made to pass into one another by a series of gradations so gentle that the passage shall nowhere present any interruption or breach of continuity.
Page 143 - A standard solution of cane sugar, mixed with an equal volume of the sulphuric acid, gave a permanent precipitate, on the addition of the first drop of the acetate of lead. These experiments show clearly that very considerable quantities of sulphate of lead can be held in solution by weak alcohol charged with various salts. It may, therefore, reasonably be inferred that wines sometimes retain lead in solution, in consequence of this action of the acids and salts peculiar to wine upon lead compounds...
Page 72 - ... earth, but is thrown off into the cold stellar space above. This ascending current, instead of being employed in warming the globe, is in reality one of the most effectual means that the earth has of getting quit of the heat received from the sun, and of thus maintaining a much lower temperature than it would otherwise possess. It is in the equatorial regions that the earth loses as well as gains the greater part of its heat; so that, of all places, here ought to be placed the substance best...
Page 128 - The vapor is taken from the surface water; the surface water thereby becomes more salt, and, under certain conditions, heavier ; when it becomes heavier, it sinks ; and hence we have, due to the salts of the sea, a vertical circulation, namely, a descent of heavier — because salter and cooler — water from the surface, and an ascent of water that is lighter — because it is not so salt — from the depths below.
Page 137 - ... forms of the same condition of matter, and may be made to pass into one another by a series of gradations so gentle that the passage shall nowhere present any interruption or breach of continuity. From carbonic acid as a perfect gas to carbonic acid as a perfect liquid, the transition we have seen may be accomplished by a continuous process, and the gas and liquid are only distant stages of a long series of continuous physical changes.
Page 30 - India-rubber, gutta percha, &c., were substituted for the sole of the boot ; metal plates were also tried ; all communicated negative electricity to the body. Woollen stockings are a great impediment to the transmission of electricity from the boot; when these experiments were made I wore cotton ones. When I substituted for the electrometer a long wire galvanometer, such as is usually employed in physiological experiments, the needle was made to advance several degrees. At the Meeting of the British...
Page 71 - ... actually below the freezing-point. In fact, if those currents were warm, they would elevate the snow-line above themselves. The heated air rising off the hot burning ground at the equator, after ascending a few miles, becomes exposed to the intense cold of the upper regions of the atmosphere ; it then very soon loses all its heat, and returns from the equator much colder than it went thither.
Page 125 - India seas; for on one side we have the Caribbean Sea and Gulf of Mexico, with their waters of brine ; "*"• on the other, the great Polar basin, the Baltic, and the North Sea, the two latter with waters that are but little more than brackish.* In one set of these sea-basins the water is heavy ; in the other it is light. Between them the ocean intervenes ; but water is bound to seek and to maintain its level ; and here, therefore, we unmask one of the agents concerned in causing the Gulf Stream.

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