The Scientific Papers of the Honourable Henry Cavendish, F.r.s Volume 1 the Electrical Researches

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INTRODUCTION BY THE EDITOR
1
EXPERIMENTS IN 1773 P 240
2
PAGE
4
Papers on the Torpedo by Walsh Hunter c
9
Part I
10
OF
11
Order of the manuscripts determined
15
Equilibrium of the electric fluid 16
16
Specifications for coating of plates 589
296
Spreading of electricity on the surface of the glass Fig 21
302
Shocks from 1st Torpedo 596
303
Fringe of dirt
308
Tuesday July 4 1775 Second leather Torpedo touched in various ways 612
309
Experiments on 1o pieces of glass from the same piece
314
Experimental investigation of spreading
321
Effect of thickness of glass
327

Specific inductive capacity
21
Resistance of solutions of different salts
27
Two plane parallel plates 2838
28
OF MS ARTICLES
36
Increase of charge by induction 652
38
Canals of incompressible fluid 3953
39
Pressure of electric fluid against a surface
54
Molecular constitution of air 97
65
On the cases in which bodies receive electricity from or part with it to the air 118122
71
Wilcke and Epinuss experiment of electrifying a plate of air Mem Berl
79
FIG PAGE
118
Adjustable Trial Plate
127
Insulators of waxed glass
134
Capacity of two disks at a finite distance
141
Lemma m1 Repulsion of two columns
146
2o Machine for trying Leyden vials
151
1 Fig 4 Charge of two equal cylinders at a finite distance
152
Fig 7 Concave plate compared with flat one
158
Perforated coatings
163
Density increasing towards the circumference
164
Fig 1o Penetration of glass by fluid
171
Prop 11
177
Effect of heat on glass
182
Effect of an overcharged body
183
Mutual action of large circle and trial plate in Experiment v
189
Hypothesis of an electric fluid
195
Effect of an overcharged body
211
The electricity of glass is here taken to be positive
217
The charging jar
223
Advantages of the second method
229
Double plate 175 x 285 tried with small sliding trial plate
230
D E F G 655
234
Second experiment A piece of wood within a vessel formed of two wooden drawers
235
Intention of the experiments
236
Results 661
240
Theory of the experiment
242
The gauge electrometer
248
The bodies to be tested were chosen of nearly equal capacity
254
Diminution of shock by passing through different liquors 524
255
Leakage of the Leyden vials
261
OF MS ARTICLES
266
Result of the six arrangements
267
Fifth experiment Charge of two small circles compared with that of a large
273
Whether the force with which two bodies repel is as the square of the redundant
275
Sixth experiment Charge of two short wires compared with that of one long one
279
Separation of Henlys electrometer when fixed in the usual way and on upright
281
Comparison of square plate with disk
283
Comparison of conducting powers of sat sol S S and rain water 577
287
Comparison with theory
289
New apparatus for the comparison of capacities Fig 2o
295
Charge of glass plates is many times greater than it ought to be by the theory
332
Hypothesis about the relative effect of surrounding bodies on the capacities of different
338
Whether charge of coated glass bears the same proportion to that of another body
342
Experiment to determine whether the air between the plates is charged
344
Experimental rosin 678
348
Results 646
349
Second hypothesis A conducting stratum within the glass Fig 25
351
NOTES BY THE EDITOR P
352
Correction for greater amount of spreading with the stronger degree of electrification
357
Distribution of hypothetical fluids in spheres c
358
Discussion of the results
363
Canals of incompressible fluid
365
Charges of two parallel disks close together
368
Glass conducts electricity better as the temperature rises
369
Molecular constitution of air
370
Idea of potential
372
Cases of Attraction and Repulsion
373
Escape of electricity into the air
374
Dephlegmated bees wax
375
Theory of compound plates
379
The repulsion between two bodies electrified to the same degree ought by the theory
386
Electromotive force required to produce a spark 375
375
Two circular disks far apart on the same axis 377
377
Capacity of a long narrow cylinder 382
382
Comparison of the force required to produce an equal divergence of the two electro
388
Condensers with curved plates
389
Mutual influence of condensers
392
The Leyden jars
394
On the Thoughts concerning Electricity
397
Early form of Cavendishs Theory of Electricity
398
Experiment on the charge of a globe between two hemispheres
404
2o Capacity of a disk of sensible thickness
409
Lines of flow of the discharge of the Torpedo 399
411
Capacity of a square
412
Charge of the middle one of three parallel plates
413
Capacity as affected by walls of the room
415
Tin cylinder and wires compared with theory
416
Comparison of measurements of dielectric capacity
418
On Electrical Fishes
419
Shocks in air and under salt water Law of divided currents 41542o
421
Excess of redundant fluid on positive side above deficient fluid on negative side
423
Iron wire and salt water compared as regards conductance
429
Other saline solutions
430
Globe and disk compared as regards capacity
433
LIFE OF CAVENDISH by THOMAS YOUNG p
435
Structure of the electric organ
436
Mr J Cooling Jun Churchwarden of All Saints informs me that there is no slab or monu
439
Trials of wires Single wire 96 x 19 Two wires 48 x 1 at 36 and 18
447
Three coated plates o6o31
449

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