NOTICE.-Numbers returned from Agents have completed a few additional sets of the Annals, which may be obtained from the Publisher.

PHILOSOPHICAL AND ASTRONOMICAL APPARATUS, MANUFACTURED AND SOLD BY

WILLIAM D. TICKNOR,

Corner of Washington and School Streets, Boston.

SCHOOL SET,

Including Orrery, Globe, Numeral Frame, a set of Geometrical Solids, with Holbrook's Easy Lessons in Geometry,' a Map of the World, and of the United States, Manuscript Letters, Geometrical Diagrams, Solar System, and Arithmeticon,

A very neat three inch Globe, mounted on a brass stand, with meridian,

ASTRONOMICAL SET,

$10.00 $1.25

Including an Orrery, neatly finished, with crank and gear work, by which the planets are
put in motion; Tellurium or Season Machine, showing the motion of the earth on its axis,
inclination to the north, motion round the sun, moon round the earth, moon's nodes, &c.;
a five inch Globe and Stand; Tide Dial, illustrating the doctrine of tides: Tide Dipper;
Globe and Axle to show the supposed cause of the prolateness of the earth, $15 & 18
Orreries in which the planets are put in motion round the sun, and moon round the earth,
by means of a spring and gear work, mounted upon a brass stand,
A cheaper Spring Orrery, mounted on a mahogany stand,
Orreries in which the planets are put in motion by means of a crank and gearing, mounted
on a mahogany stand,

An Orrery as in School set, crank and gear work, mounted on a cherry stand,
Telluriums on brass stands, gilt sun and moon, and every way a superior article,
Telluriums on brass stands, but less finish,

Telluriums on mahogany stands,

MECHANICAL POWERS.

$30 00 $15.00

$8.00 $6.00 $15 00 $10 00

$350, $4 50

A frame including an arrangement of the Levers, Pulleys, Wheel and Axle, Screw and Wedge. Also, an Inclined Plane, Carriage, Ship Capstan, a Hydrostatic Bellows, and a set of brass weights, graduated from 1 to 16 oz.,

$15 00

$35 00

A larger Set, including the same as above, but more completely finished, A much larger Set, with several additional applications of the Mechanical Powers, including an elegantly finished Hydrostatic Bellows,

CHEMICAL SET,

$100 00

Includes a Pneumatic Cistern, with two Gasometers, Stopcocks, and Compound Blowpipe; Shelf for collecting gas; iron Retort, tube and flexible Gas Conductor; Reflectors with stands and cast iron ball; Lamp Stand with five bows; Eolopile; Pyrometer and rods; Conductometer with six rods and cup; Gas Pistol, &c.; a set of Glass, including fourteen articles, such as Retorts, Florence Flasks, Mattrasses, Jars, Beli Glass, Dropping Tube, Air Thermometer, Lamp, Graduated Measure, Tunnel, Glass Rods and Tube. Also, a valuable set of Chemical Substances and Crucibles,

$25.00

A larger and more complete Set, including several additional articles of the best quality, such as a large Gas Bag, with Stopcock and Jet; Several Gases; Table Furnace, &c.

ELECTRICAL MACHINES.

$35 00

Plate and Cylinder machines, of various sizes, and as various in prices-from $15 to $150 00 One of medium size and price, as usually called for, for the use of Schools and Academies, is an 8 inch cylinder, neatly mounted on a mahogany stand, with a well finished brass Prime Conductor; two 3 pint Leyden Jars, one on each side of the Conductor; a glass handled jointed Discharger; an Electrometer; an S; Season Machine; Electric Bells, box of Amalgam Chains, and an insulating Stool; all thoroughly finished and packed in a han some case, with lock, key and handles, $35 00

A plate Cylinder, 28 inches diameter, and insulated, two Prime Conductors, positive and negative; an Electric Battery of eight 3 pint Jars, in a mahogany case; a glass handled jointed Discharger; brass plates for Dancing Images; insulated Stool; a set of Electric Bell; Qatrant Electrometer; gold leaf Electrophorus; Electric Season Machine; box of Amalgam an! Chains, of good materials and warranted first rate workmanship, $150 00 Also, at fair prices, Thunder Houses; Illuminated Jars; Glass Vacuum Tubes, (and Exhausting Pump,) for showing the Northern Lights; Electric Cannons, Letters, &c. [Continued on page 3 of the Cover.