AN INDEX OF THE Astronomical Terms Made Use of in this BOOK.

Acronical Rising and Setting of the Stars Page 96

Almacanthers 63

Altitudes ib.

——— Meridian Altitude 63

Amplitude 62

Amphiscians 91

Annual Motion 7

Antœci 92

Antarctic Circle 53

——— Pole ib.

Antipodes 93

Arctic Circle 52

Arctic Pole 53

Ascension 68

——— Right ib.

——— Oblique 69

Ascensional Difference ib.

Ascians 91

——— Heteroscians ib.

Asterisms 36

Atmosphere 81

Axis 43

——— of the World 49

Azimuth 61

Babylonish Hours 71

Bissextile 78

Circle 42

——— Great Circles ib.

——— Parallel, or lesser Circles 43

——— Secondary Circles ib.

Circles of the Sphere 47

Climates 93

Colures 53

——— Equinoctial Colure ib.

——— Solstitial Colure 54

Comets 29

Conjunction 11, 207

Constellations 36

Cosmical rising and setting of the Stars 96

Crepusculum 83

Day, Natural and Artificial 69

Declination 52

Diurnal Motion 7

Diurnal Arch 68

Eclipses 208

——— Solar ib.

——— Lunar ib.

Eclipses of Jupiter’s Satellites 212

Ecliptic 53

Egyptian Year 75

Elongation 18

Equator, or Equinoctial 48

Equinoctial Points 53

——— Precession of 55

——— Vernal and Autumnal 70

Excentricity 4

Galaxy, or Milky Way 38

Geocentric Place 19

Globe 42

——— Terrestrial 43

——— Celestial 44

Gregorian Account 80

Heliacal rising and setting of the Stars 96

Heliocentric Place 19

Hemisphere 42

——— Northern and Southern 49

Heteroscians 91

Horizon 58

——— Sensible ib.

——— Rational 59

Hour Circles 50

Italian Hours 72

Jewish Hours ib.

Julian Account 79

Latitude, in Astronomy 56

——— in Geography 84

Longitude in Astronomy 56

——— in Geography 87

Meridian 50, 61

Nadir 61

Nodes 3, 202

Nocturnal Arch 68

Orbit 3

Parallel of the Earth’s Semidiameter 23

——— of the Earth’s Annual Orb 20

Periœci 92

Periscians 91

Periodical Month 74, 202

Phases of the Moon 201

Planets 1

——— Inferior and Superior 14

Planetary Hours 72

Poles 42

——— of the World 49

——— of the Ecliptic 56

Polar Circles 52

Points of the Compass 60

——— Cardinal Points 59

Primary Planets 5

Retrograde Motion of the Planets 187

——— of the Nodes 202

Secondary Planets 5

Sidereal Year 74

Signs of the Zodiac 54

——— Northern and Southern ib.

Solstices 71

——— Summer and Winter Solstices ib.

Solstitial Points 53

Sphere 42

——— Parallel and Right 67

——— Oblique 68

Stationary 186

Style Old 79

——— New Style 80

Synodical Month 74, 202

Tropics (of Cancer and Capricorn) 52

Twilights 83

Vertical Circles 61

——— Prime Vertical 62

Zenith 61

Zenith Distance 63

Zones, Torrid, Temperate, and Frigid 90

THE END

Directions to the Binder.

The great Orrery to face the Title.

Plate I. Page 2

Plate II. 28

The Globes 35

Plate III. 194

Plate IV. 200

Plate V. 214

A CATALOGUE

Of Mathematical, Philosophical, and Optical Instruments,

MADE and SOLD by

BENJAMIN COLE,

At his Shop, the Sign of the Orrery, No. 136, in Fleet street, London.

l. s. d.

Variety of pocket cases of Drawing Instruments, in Silver, from 3l. 3s. to 20 0 0

Ditto, in Brass, from 5s. to 5 5 0

Magazine Cases, in Silver, from 12l. to 150 0 0

Ditto, in Brass, from 5l. to 50 0 0

Circular Compasses to describe a Circle as small as a pin’s head, from 3s. to 0 7 6

Long Hand Drawing-pens, from 1s. to 0 5 0

Compasses in Brass, with shifting points, as the Ink and Black Lead points, from 2s. 6d. to 1 1 0

Plain Compasses, from 6d. to 0 5 0

Beam Compasses, for drawing large circles, from 12. to 3 0 0

Proportionable Compasses, from 1l. 1s. to 5 5 0

Triangular Compasses, from 14s. to 0 18 0

Elliptical Compasses, for Ovals, from 1l. 11s. 6d. to 5 5 0

Hair Compasses 0 7 6

Bows for drawing curved lines, from 4s. to 0 10 6

Sets of Feather-edge Scales, in Brass, Ivory, or Wood, from 12s. to 1 16 0

Plain ditto, or Plotting ditto, in ditto, from 8d. to 0 18 0

Gunter’s 2 feet, and 1 foot Scales, in Brass or Wood, from 2s. to 2 2 0

Protractors of all sorts, from 1s. 6d. to 1 16 0

Parallel Rules, from 6 to 36 inches, from 2s. 6d. to 1 16 0

Cross-bar ditto, in Brass, Ivory, or Wood, from 4½ inches, to 3 feet, from 10s. 6d. to 3 0 0

Sectors, in ditto, from 2s. 6d. to 4 14 6

Theodolites, from 3l. 3s. to 6 6 0

Ditto, with Vertical arch, Spirit Levels, Telescope, &c. from 10l. 10s. to 21 0 0

Plain Tables, from 3l. 3s. to 5 5 0

Circumferentors, the principal Instrument for Surveying in the West-Indies, from 1l. 16s. to 3 13 6

Gunter’s four pole chains, from 6s. to 0 12 0

Spirit Levels of all sorts, from 5s. to 12 12 0

Pentographia, for the ready and exact reduction or copying of

Schemes, Drawings, Prints, &c. 4 14 6

Measuring Wheels for Surveying, from 4l. 14s. 6d. to 6 6 0

Hadley’s Quadrants, with Diagonal Divisions 1 14 0

Ditto, with a Nonius, from 2l. 2s. to 3 13 6

Ditto, all in Brass, from 3l. 13s. 6d. to 6 6 0

Davies’s Quadrant, from 12s. to 1 1 0

Cole’s ditto, from 18s. to 1 5 0

Sutton’s ditto 0 6 0

Gunter’s ditto, from 3s. 6d. to 1 1 0

Horizontal Sun Dials, for all Latitudes, from 5s. to 10 0 0

Ring Dials, from 10s. 6d. to 21 0 0

Azimuth Compasses, from 5l. 5s. to 10 0 0

Amplitude ditto, from 1l. 7s. to 5 5 0

Mariner’s Compasses, either for the Cabin, or Binacle, from 7s. 6d. to 3 13 0

Pocket Compasses, from 1s. to 1 11 6

Large Orreries, from 50l. to 250 0 0

Armillary Spheres, from 12l. to 50 0 0

Seventeen inch Globes 6 6 0

Fifteen inch ditto 5 5 0

Twelve inch ditto 3 3 0

Nine inch ditto 2 2 0

Six inch ditto 1 16 0

Three inch ditto, in a case, from 8s. to 0 10 0

Large double Barrell’d standing air pumps 25 0 0

Apparatus to ditto, from 3l. 3s. to 12 12 0

Double Barrell’d table air pumps, with their apparatus, from 5l. 15s. 6d. to 20 0 0

Single Barrell’d ditto 2 12 6

Apparatus to ditto 2 2 0

Electrical Machines, in Brass, with apparatus, box, &c. from 5l. 5s. to 13 13 0

Barometers, from 1l. 1s. to 1 16 0

Ditto & Thermometer, in one frame, from 1. 11s. 6d. to 2 12 6

Barometer, Thermometer, and Hydrometer, all in one frame, from 2l 12s. 6d. to 3 13 6

Farenheit’s Thermometers, in mahogany cases, from 1l. 5s. to 1 11 6

Pocket ditto, in black cases, from 12s. to 1 1 0

Spirit Thermometers, on box scales, for hot-houses 0 10 6

Hydrometers, in Ivory, from 4s. to 0 5 6

Ditto, in copper, with weights, &c. for proving Spirits, from 1l. 1s. to 1 5 0

Hydrostatic Balance, with apparatus, &c. 1 15 0

Speaking Trumpets, from 10s. to 1 11 6

Hearing ditto, from 7s. 6d. to 1 1 0

Reflecting Telescopes, from 1l. 16s. to 50 0 0

Refracting ditto, of various lengths, with four or six glasses, from 7s. 6d. to 6 6 0

Double reflecting Microscopes, from 3l. 13s. 6d. to 7 7 0

Solar ditto, in Brass, from 4l. 4s. to 6 6 0

Wilson’s pocket ditto, from 1l. 5s. to 2 12 6

Opake ditto, from 2l. 12s. 6d. to 3 13 6

Cloth ditto, from 3s. 6d. to 0 7 6

Flower ditto, from 3s. 6d. to 0 5 0

Diagonal Machines for viewing prints, from 16s. to 1 11 6

Large Book Camera Obscura, from 4l. 4s. to 5 5 0

Box Camera Obscura, from 10s. 6d. to 2 2 0

Scioptric Ball and Socket, in Wood 0 7 6

Opera Glasses, from 5s. to 2 12 6

Prospect ditto, from 8d. to 0 10 6

Magic Lanthorn, without objects, from 1l. 1s. to 1 7 0

Magic Lanthorn sliders, with objects, from 5s. to 0 10 6

Mirrors, convex or concave, of all sizes, in black frames, from 10s. 6d. to 16 16 0

Prisms, from 6s. to 1 1 0

Reading Glasses set in a variety of curious frames, from 2s. 6d. to 2 12 6

Watchmaker’s Glasses, in frames, from 1s. to 0 10 6

Concave ditto, for short sighted persons, from 1s.6d. to 2 2 0

Spectacles ground on brass tools, and set in silver, tortoise shell, horn, &c. from 1s. to 1 7 0

Achromatic, Opera, and Prospect glasses, from 1l. 1s. to 1 16 0

Achromatic Telescopes of any length, at 1l. 1s. each foot.

Gauging Rules, Carpenter’s Rules, and all other kind of Rules,

at the usual Prices.

The Eleventh Edition of Harris on the Globes, with the

Description and Use of the Orrery, 3s. 6d.

The Use of the Sector and plain Scale explained, 1s.

The Use of Hadley’s Quadrant explained, 6d.

A fine Print of the Orrery, on imperial paper, 2s.

A smaller ditto, 6d.

Variety of other Instruments too tedious to mention, are made and sold at the above place: Where any Gentleman, by Letter, or other Directions, may depend on being as faithfully served as if present. And as I have been long in the Wholesale part of the Business, Merchants, &c. may be sure of being supplied on the Best Terms. As also by M. Allison, at Falmouth.

FOOTNOTES: