BOOKS BY JOHN TYNDALL, LU a, F. R S. 



Essays on the Floating Matter of the Air in 

 Relation to Putrefaction and Infection. 



Illustrations. i2mo. Cloth, $1.50. 



Forms of Water in Clouds and Rivers, Ice and 

 Glaciers. 



(International Scientific Series.) 12010. Cloth, $1.50. 



Heat as a Mode of Motion. 



New edition. i2mo. Cloth, $2.50. 



Sound. 



i2mo. Cloth, $2.00. 



Fragments of Science for Unscientific People. 



A Series of Detached Essays, Lectures, and Reviews. Revised and 

 enlarged edition. i2mo. Cloth, 5^2.00. 



Light and Electricity. 



Notes of Two Courses of Lectures before the Royal Institution of Great 

 Britain. i2mo. Cloth, $1.25. 



Lessons in Electricity, Royal Institution, i875-'76. 



i2nio. Cloth, $1.00. 



Hours of Exercise in the Alps. 



With Illustrations. i2mo. Cloth, $2.00. 



Faraday as a Discoverer. 



A Memoir. i2mo. Cloth, l^i.oo. 



Contributions to Molecular Physics in the 

 Domain of Radiant Heat. 



Memoirs published in the "Philosophical Transactions " and " Philo- 

 sophical Magazine." With additions. 8vo. |!5.oo. 



Six Lectures on Light. 



Delivered in America in iS72-'73. izmo. Cloth, $1.50. 



Address delivered before the British Association 

 assembled at Belfast. 



Revised. i2mo. Paper, 50 cents. 



Researches on Diamagnetism and Magne-Crys- 

 tallic Action. 



Including the Question of Diamagnetic Polarity. 10 Plates, izmo. 



Cloth, $1.50. 



New Fragments. 



i2mo. Cloth, $2.00. 

 D. APPLETON AND COMPANY, NEW YORK. 



