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INDEX OF CATEGORIES

ELECTRICITY
1 CYLINDRICAL CONDUCTOR WITH ELECTRIC PENDULUMS
2 ELECTRIC CARILLON
3 CAVENDISH-BECCARIA ELECTRIC HOLLOW GLOBE
4 LIGHTNING-CONDUCTORS
5 LEYDEN JARS
6 BATTERY OF NINE LEYDEN JARS
7 LUMINOUS LEYDEN JAR
8 LANE'S MICROMETRICAL SPARK GAP WITH LEYDEN JAR
9 FRANKLIN'S BATTERY
10 EPINOUS'S CONDENSER
11 DISCHARGER
12 DISCHARGER
13 ELECTROSTATIC DISCHARGER WITH DOUBLE FORK
14 MASCART'S INSULATORS
15 VOLTA'S PISTOL
16 VOLTA'S PISTOL (2 PIECES)
17 PITH-BALL AND GOLD LEAF ELECTROSCOPES
18 BOHNENBERGER'S ELECTROSCOPE
19 BOHNENBERGER'S ELECTROSCOPE
20 PELTIER'S ATMOSPHERIC ELECTROMETER
21 PELTIER'S ATMOSPHERIC ELECTROMETER
22 HENLY'S ELECTROMETER
23 ELECTROSTATIC BALANCE
24 THOMSON-MASCART'S QUADRANT ELECTROMETER
25 WINTER'S PLATE ELECTRICAL MACHINE
26 ACCESSORIES OF THE WINTER'S MACHINE
27 SPIRAL FULMINATING TUBE
28 HOLTZ'S ELECTROSTATIC INFLUENCE MACHINE
29 ELECTROSTATIC MACHINE WITH SELF-EXCITATION TOPLER-VOSS
30 POTASSIUM BICHROMATE ELECTROCHEMICAL CELLS
31 NOBILI'S PORTABLE GALVANOMETER
32 ASTATIC GALVANOMETER
33 MELLONI'S THERMOMULTIPLIER
34 UNIVERSAL MEASURING DEVICE, MOVING COIL TYPE
35 AMPERE'S APPARATUS
36 MAGNETIC SPARKLER
37 INSTRUMENTS OF NOBILI'S "ELECTROMAGNETIC BOX"
38 BARLOW'S WHEEL [1]
39 SMALL CONTAINER WITH TWO VERTICAL WIRES [2]
40 SMALL CONTAINER WITH TWO HORIZONTAL WIRES [3]
41 FARADAY'S DEVICE FOR THE CONTINUOUS CIRCUIT [4]
42 DEVICE FOR SHOWING THE DIRECTIVE ACTION OF THE EARTH'S MAGNETIC FIELD ON VERTICAL CURRENTS
43 DEVICE FOR SHOWING THE CONTINUOUS ROTATION OF A MOVING CIRCUIT BY MEANS OF A FIXED CIRCULAR CURRENT
44 MATTEUCCI'S SPIRAL PLATES INDUCTION DEVICE
45 LITTLE MEDICAL INDUCTION COIL WITH MANUAL CONTACT-BREAKER (WHEEL TYPE)
46 LITTLE MEDICAL INDUCTION COIL WITH HAMMER-BREAKER (HORSESHOE-SHAPED ELECTROMAGNET TYPE)
47 INDUCTION COIL
48 INDUCTION COIL WITH PLATINUM AND MERCURY CONTACT-BREAKERS
49 INDUCTION COIL WITH SPARK GAP AND FOUCAULT CONTACT-BREAKER
50 INDUCTION COIL
51 DE LA RIVE INDUCTION COIL
52 BOURBOUZE'S ELECTROMOTOR
53 CLARKE'S MAGNETO-ELECTRIC MACHINE
54 MAGNETO-ELECTRIC MACHINE FOR ELECTROTHERAPY
55 VOLTAIC ARC WITH MANUAL ADJUSTMENT
56 ELECTRIC EGG
57 DE LA RIVE'S ELECTRIC EGG
58 GENERAL VIEW OF THE EDUCATIONAL STRUCTURE WITH DEVICES FOR ELECTRICAL ENERGY CONTROL AND DISTRIBUTION
59 RIGHI'S THREE SPARKS OSCILLATOR
60 COUPLE OF TRANSMITTER AND RECEIVER TELEPHONES WITH WHISTLE CALLING
61 FOUR TELEPHONES BELL-TYPE
62 TWO TELEPHONES BELL-TYPE
63 RIGHI'S TELEPHONE RECEIVER
64 RIGHI'S MICROPHONE
65 PNEUMATIC TELEGRAPHS (DIAL TYPE)
66 SKINWIRE FOR TELEGRAPHIC LINES
67 MORSE'S RECORDING TELEGRAPH WITH KEY

OUR COLLECTION OF SCIENTIFIC INSTRUMENTS

ELECTRICITY




Pneumatic telegraphs (dial type) Telegrafi pneumatici a lettera
Subject: electromagnetism/telegraphy Settore: elettrodinamica/telegrafia pneumatica
Numbers of catalogue: 249-250 Numeri di inventario: 249 - 250
Printed on the paper dial: "télégraphe à air" Sul quadrante di carta: "Télégraphe à air" [a stampa]
In relief on the brass rhomboidal plate under the base: "Guattari Telegr. Atmosf. France" Su un'etichetta romboidale d'ottone posta sotto la base: "Guattari Telegr. Atmosf. France" [in rilievo]
c. 1873 Periodo di costruzione: 1873 circa
Mahogany, brass, glass, paper Materiali utilizzati: Mogano, ottone, vetro, carta
110 X 95 X 34 [mm] Dimensioni: 110 X 95 X 34 [mm]

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Last modified: 18 may 2011
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