WALTON AND MABEKLY. 7 
Potter’s Elementary Treatise on Optics. Part II. Con- 
tabling the Higher Propositions, with their application to the more perfect forms 
of Instruments. 8vo. 12s. 6d. 
Potter s Physical Optics; or, the Nature aud Properties of 
Light. A Descriptive and Experimental Treatise. 100 Illustrations. 8vo. 6s. 6d. 
* New IBs Elements of Mechanics , including Hydrostatics , 
with numerous Examples. By Samuel Newth, M.A., Fellow of University Col¬ 
lege, London. Second Edition. Large 12mo. 7s. 6d. cloth. 
* Newtlis First Book of Natural Philosophy ; or an Intro- 
duction to the Study of Statics, Dynamics, Hydrostatics, and Optics, with numer¬ 
ous Examples. 12mo. 3s. 6d. cloth. 
Kimher’s Mathematical Course for the University of 
London. Second Issue, carefully revised, with a New Appendix. 8vo. 10s. 
NATURAL PHILOSOPHY, ASTRONOMY, Etc. 
Lardner’s Museum of Science and Art. Complete in 12 
Single Volumes, 18s., ornamental hoards ; or 6 Double Ones, £1 Is., cl. lettered. 
*** Also , handsomely half-hound morocco, 6 volumes, £1 11s. 6d. 
Contents. 
Thermometer. « 
New Planets. — Leverrier and Adams’s 
Planet. 
Magnitude and Minuteness. 
Common Things.—The Almanack. 
Optical Images. 
How to Observe the Heavens. 
Common Things.—The Looking Glass. 
Stellar Universe. 
The Tides. 
Colour. 
Common Things.—Man. 
Magnifying Glasses. 
Instinct and Intelligence. 
The Solar Microscope. — The Camera 
Lucida. 
The Magic Lantern. — The Camera 
Obscura. 
The Microscope. 
The White Ants. — Their Manners and 
Habits. 
The Surface of the Earth, or First Notions 
of Geography. 
Science and Poetry. 
The Bee. 
Steam Navigation. 
Electro-Motive Power. 
Thunder, Lightning, and the Aurora 
Borealis. 
The Printing Press. 
The Crust of the Earth. 
Comets. 
The Stereoscope. 
The Pre-Adamite Earth. 
Eclipses. 
Sound. 
the Body and its Functions> 
Familiarly Explained. 520 Illustrations. 1 vol., small 8vo. 12s. 6d., cloth (see 
page 15). 
Lardners Animal Physiology for Schools (<chiefly taken 
from the “Animal Physics”). 170 Illustrations. 12mo. 3s. 6d. cloth (see 
page 15). 
The Planets; are they inhabited Worlds? 
Weather Prognostics. 
Popular Fallacies in Questions of Physical 
Science. 
Latitudes and Longitudes. 
Lunar Influences. 
Meteoric Stones and Shooting Stars. 
Railway Accidents. 
Light. 
Common Things.—Air. 
Locomotion in the United States. 
Cometary Influences. 
Common Things. — Water. 
The Potter’s Art. 
Common Things.—Fire. 
Locomotion and Transport, their Influ¬ 
ence and Progress. 
The Moon. 
Common Things.—The Earth. 
The Electric Telegraph. 
Terrestrial Heat. 
The Sun. 
Earthquakes and Volcanoes. 
Barometer, Safety Lamp, and Whitworth’s 
Micrometric Apparatus. 
Steam. 
The Steam Engine. 
The Eye. 
The Atmosphere. 
Time. 
Common Things.—Pumps. 
Common Things. — Spectacles — The 
Kaleidoscope. 
Clocks and Watches. 
Microscopic Drawing and Engraving. 
Locomotive. 
Lardners Animal Physics , or 
