The Electrical Researches of the Honourable Henry Cavendish, F.R.S., Written Between 1771 and 1781

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University Press, 1879 - Electricity - 454 pages

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Contents

Hypothesis 146
3
Force between two bodies over or under charged 1315
13
Equilibrium of electricity in a globe 2027
20
Two plane parallel plates 28438
39
Attraction and repulsion of electrified bodies 210
47
Charge of a condenser little affected by the presence of an over
52
Pressure of electric fluid against a surface
54
Charges of similar bodies as the n1 power of their corresponding diame
67
Charge of a thin flat plate independent of its thickness
73
Equilibrium of electricity in bodies communicating by a canal is
84
Cor 176
85
Whether the conditions of equilibrium are the same for two bodies
94
PAGE OF Ms ARTICLES
95
Attraction and repulsion 106117
102
Fig PAGE
104
Trial Plate
116
New apparatus for the comparison of capacities Fig 20 295
120
On the cases in which bodies receive electricity from or part with
124
The gauge electrometer
130
Seventh experiment Comparison of the capacities of several bodies
137
Fig 1 If the fluid uniformly spread on a circular plate
140
List of plates of glass 592
144
Repulsion of two columns
146
The trial plate 297
147
Fig 4 Charge of two equal cylinders at a finite distance
152
Ten plates from Nairne 593
157
Fig 7 Concave plate compared with flat one
158
Slit coatings
159
Comparison of different cylinders
161
Density increasing towards the circumference
164
On the Leyden vial
168
Fig 10 Penetration of glass by fluid
170
Effect of heat on glass To face p
180
Cor 2
181
Lemma Potential of two equal particles compared with that of their
187
386
189
Effect of floor and walls of the room
193
Condition of electric equilibrium between conductors in electric com
199
Electrification by induction
205
Electrification by induction
211
The electricity of glass is here taken to be positive
217
Three coated plates 1 8 diam 18 thick
218
The charging jar
223
Double plates A and B and plate air 39 7 95
225
Advantages of the second method
229
Second experimentA piece of wood within a vessel formed of
235
Method of operation Fig 14
241
PAGE OF
250
Whether charge of Leyden vial bears the same proportion
269
Allowance for connecting wire 647
278
B 2 79 D 2 73 white 2 85 B D N W tried
280
Experiment to test the theory Fig
283
Comparison of Lanes electrometer with light straw electro
291
The Leyden jars
296
MEASURES
298
632
326
Effect of temperature 691
326
Spreading not uniform throughout its extent
328
Results 635
329
Fixed air in water 693
331
Charge of glass plates is many times greater than it ought to be by
333
RESISTANCE OF COPPER WIRE
338
Application of this hypothesis to the three circles and the globe
339
41 345 compared with double B by sliding coated plate
344
The air is not charged
345
Increase of charge by induction 652 Increase of charge by induction
347
Third hypothesis A great number of strata alternately conducting
351
Correction for spreading with electricity strong and weak 665
353
Correction for greater amount of spreading with the stronger degree
357
Sea salt
359
Water with different quantities of salt in it 696
361
NOTES BY THE EDITOR NOTE PAGE 1 On the theory of the electric fluid
362
Discussion of the results
363
Distribution of hypothetical fluids in spheres c
368
Glass conducts electricity better as the temperature rises
369
Canals of incompressible fluid
375
Charges of two parallel disks close together
378
Infinite body
379
Molecular constitution of air
380
Zero of potential
382
Cases of Attraction and Repulsion
383
Fifth hypothesis on the communication of electricity between conductor
384
Electromotive force required to produce a spark
387
Method of preventing the vibration of the straws
389
Capacity of a long narrow cylinder
393
Shock given by the Torpedo under water
397
Two cylinders
400
Lemma XVI
401
Glass as a dielectric
402
Influence of condensers
403
Theory of the experiment with trial plates
406
Artificial Torpedo
409
Early form of Cavendishs Theory of Electricity
411
Experiment of the globe and hemispheres
417
The testing electrometer 244
418
Torpedo in a basket in sand shock through wet shoes and through net 421424
421
Capacity of a disk of sensible thickness
423
Two circles
425
Square
426
Three parallel plates
427
Capacity as affected by walls of room
429
Tin cylinder c
430
Comparison of measurements of dielectric capacity
432
On Electrical Fishes
433
Structure of the electric organ
434
Excess of redundant fluid on positive side above deficient fluid on negative side
437
Pump water rain water salt in 1000 sea water 684
443
Salt and fresh water 34 Other saline solutions
445
Globe and circle
448
The two flat conductors between which the plate of air lies or in modern
1

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