Printed for James Walton, 137, Goiver Street. 3 



AN ELEMENTARY TREATISE ON ME- 

 CHANICS, for the Use of the Junior University Students. 

 By RICHARD POTTER, A.M., late Professor of Natural 

 Philosophy in University College. Fourth Edit. 8s. 6d. 



POTTER'S TREATISE ON OPTICS. Part I. 

 All the requisite Propositions carried to First Approxima- 

 tions, with the construction of Optical Instruments. Third 

 Edition. 8vo, 95. 6d. 



Part II. The Higher Propositions, with their applica- 

 tion to the more perfect forms of Instruments. 8vo, 123. 6d. 



POTTER'S PHYSICAL OPTICS; or the Nature 

 and Properties of Light. A Descriptive and Experimental 

 Treatise. 100 Illustrations. 8vo, 6s. 6d. 



A GUIDE TO THE STARS. In Eight Plani- 

 spheres, showing the Aspect of the Heavens for every Night 

 in the Year. 8vo, 53. 



COMMON THINGS EXPLAINED. By DiONY- 

 sius LARDNER, D.C.L. Containing: Air Earth Fire 

 Water Time The Almanack Clocks and Watches- 

 Spectacles Color Kaleidoscope Pumps Man The 

 Eye The Printing Press The Potter's Art Locomotion 

 and Transport The Surface of the Earth. 233 Cuts. 55. 



STEAM AND ITS USES. By DIONYSIUS LARD- 

 NER, D.C.L. 89 Illustrations. 2s. 

 POPULAR GEOLOGY. By DIONYSIUS LARDNER, 



D.C.L. 201 Illustrations. 2s. 6d. 

 POPULAR ASTRONOMY. By DR. LARDNER. 



Containing : How to Observe the Heavens Latitudes and 

 Longitudes The Earth The Sun The Moon The 

 Planets : are they Inhabited ? The New Planets Lever- 

 rier and Adams's Planet The Tides Lunar Influences 

 The Stellar Universe Light Comets Cometary Influ- 

 ences Eclipses Terrestrial Rotation Lunar Rotation 

 Astronomical Instruments. 182 Illustrations. 45. 6d. 



POPULAR PHYSICS. By DR. LARDNER. Con- 

 taining : Magnitude and Minuteness Atmosphere 

 Thunder and Lightning Terrestrial Heat Meteoric 

 Stones Popular Fallacies Weather Prognostics Ther- 

 mometer Barometer Safety Lamp Whitworth's Micro- 

 metric Apparatus Electro-Motive Power Sound Magic 

 Lantern Camera Obscura Camera Lucida Looking 

 Glass Stereoscope Science and Poetry. 85 Illustns.2s.6d. 



