FINIS.
INDEX
TO
THE EPITOME OF
ELECTRICITY.
- A
- Æpinus’s theory of electricity, 115
- Amalgam, directions for making the best kind of, 126
- Apparatus, electrical, directions for using the, 68
- Attraction, electrical, 21
- Aurora Borealis, how to imitate the, 79
- B
- Balloons, inflammable air, 77
- Battery electrical, and experiments with it, 28
- Bells, electrified, 76
- Black lead, useful for points to lightning rods, 51
- Bladder, electrified, 93
- Bolognian stone, artificial, to make, 127
- Bottle director described, 65
- C
- Candle, to light a, 91
- Cannon, the electrical, 96
- Cards pierced by electricity, 90
- Cavallo, general laws deduced by him from experiments made with electrical kites, 46
- Cement, how to make, 125
- Charcoal useful at the lower extremity of lightning rods, 53
- Chemical theory of electricity, 111
- Clay swollen by the electrical shock, 90
- Colours changed by the electrical shock, 87
- —— experiments on, 87, 88
- Communication, electrifying by, 15
- Conductors, of, 6
- —— luminous, 82
- Constellations, to represent the, 101
- Cotton, electrified, 92
- Cylinders, of, 9
- —— composition for lining, 125
- —— plates may be substituted for, 14
- D
- Dance, electrical, 75
- Decomposition of water by electricity, 103
- Director, bottle, description of, 65
- —— use of, 67
- Discharging electrometer, description and use of, 67
- —— rod, luminous, 103
- Du Fay’s theory of electricity, 109
- E
- Electric attraction and repulsion, 21
- —— —— —— —— exemplified, 22, 24
- —— battery and experiments with it, 28
- —— eel, an account of the, 56
- —— fly, described, 18
- —— light, experiments with, 79
- —— spark, 16
- Electric spider, 25
- ——s, and phenomena produced by them, 2, 3, 6, 8
- —— experiments with charged, 86
- Electrical machine described, 9, 13
- Electricity, the identity of with lightning, 40
- —— how it may be applied to the best advantage, 65
- —— animal, 55
- —— apparatus necessary for, 64
- —— atmospheric, danger of making experiments with, 42, 44
- —— medical, 63
- —— positive and negative, 2
- —— various theories of, 108
- Electrometer described, 36, 64
- —— instructions for using, 37
- Electrophorus described, 33
- —— experiments with the, 34
- Excited, what is intended by, 1
- Experiments, practical rules for making, to the best advantage, 68
- —— promiscuous, 94
- Explosion, the lateral, 101
- F
- Figures made upon glass &c. by means of electricity, 97
- Fountain, the electrified, 104
- Fractured jar, how repaired, 70
- Franklin, Dr. his experiment with a kite, 40
- —— —— —— —— for illustrating his theory of thunder storms, 78
- —— his theory of electricity, 116
- Friction, electric, 65
- G
- Gibbes Dr. his theory of electricity, 113
- Glass, metals forced into, by an electric explosion, 30
- Gun-powder fired by an electric explosion, 30
- I
- Jack, the electrical, 94
- Jar, electrical, fractured, how repaired, 70
- K
- Kite, Dr. Franklin’s experiment with a, 40
- —— electrical, structure and use of the, 41
- —— —— Cavallo’s directions for using the, 43
- L
- Lane’s discharging electrometer, 67
- Leyden phial described, 26
- —— —— experiments with the, 27
- —— vacuum, 81
- Light, electric, experiment with, 79
- —— —— flashing between two metallic plates, 83
- Lightning, the identity of with electricity, 40
- —— rods, the structure and use of, 48, 54
- —— —— improved by professor Patterson, 51
- Luminous conductor, 82
- —— to render various substances, 84
- —— shower, 102
- M
- Machine, electrical, described, 9
- Magic picture, 86
- Magnetic needle, effect of electricity on the, 31
- Medical electricity, 63
- Metallic oxyds revivified, 31
- Metals forced into glass by an electric explosion, 30
- N
- Natural state, meaning of, 2
- Nollet’s Abbè, theory of electricity, 110
- Non-electrics, 2, 7
- O
- Oxyds, metallic, revivified, 31
- P
- Paint, for electrical purposes, preparation of, 126
- Paper stained by an electric explosion, 31
- Picture, magic, 86
- Pointed bodies, their influence on electricity, 17, 92
- —— —— phenomena attending, 17
- —— —— conclusions respecting, 21
- Powder, gun, fired by electricity, 30
- Prime-conductor, 12
- R
- Repulsion, electrical, 21
- Richman, Professor, killed by atmospheric electricity, while making experiments with it, 42
- Rubber, defined, 2
- —— described, and directions respecting it, 10
- S
- Shower, luminous, 102
- Snake, electrical, 102
- Spark, electric, 16
- —— —— applied for curing deafness &c., 66
- —— —— to render the, visible in water, 84
- Stream —— useful in curing diseases of the eye, 67
- Syphon, the capillary, electrified, 100
- T
- Terms, explanation of, 1
- Thermometer, effect of electricity on the, 32
- Thunder-house, experiments with the, 54
- Torpedo, an account of the, 58
- —— artificial, to make, 60
- Tube, spiral, 83
- —— the self-charging, 95
- V
- Vacuum, what is meant by the term, 79
- —— Leyden, 81
- Vegetables, effect of electricity on, 61
- Velocity of electricity, 15, 29
- W
- Water decomposed by electricity, 103
- Wheels, multiplying, may be added, with advantage, to an electrical machine, 12
- —— self-moving, described, 74
- Wilson’s theory of electricity, 109
- Wine, spirit of, fired by electricity, 89