BOOKS BY JOHN TYNDALL, LL. D., F. R S. 



Essays on the Floating Matter of the Air in 

 Relation to Putrefaction and Infection. 



Illustrations. 121110. Cloth, $1.50. 



Forms of Water in Clouds and Rivers, Ice and 

 Glaciers. 



(International Scientific Series.) I2mo. Cloth, $1.50. 



Heat as a Mode of Motion. 



New edition. i2mo. Cloth, $2.50. 



Sound. 



12010. Cloth, $2.00. 



Fragments of Science for Unscientific People. 



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

 enlarged edition. i2mo. Cloth, $2.00. 



Light and Electricity. 



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

 Britain. 121110. Cloth, $1.25. 



Lessons in Electricity, Royal Institution, i875- 76. 



I2mo. Cloth, $1.00. 



Hours of Exercise in the Alps. 



With Illustrations. 12010. Cloth, $2.00. 



Faraday as a Discoverer. 



A Memoir. 12010. Cloth, $1.00. 



Contributions to Molecular Physics in the 

 Domain of Radiant Heat. 



Memoirs published in the &quot;Philosophical Transactions &quot; and &quot; Philo 

 sophical Magazine.&quot; With additions. 8vo. $5.00. 



Six Lectures on Light. 



Delivered in America in iS72- 73. i2mo. Cloth, $1.50. 



Address delivered before the British Association 

 assembled at Belfast. 



Revised. 12010. Paper, 50 cents. 



Researches on Diamagnetism and Magne-Crys- 

 tallic Action. 



Including the Question of Diamagnetic Polarity. 10 Plates. 12010. 

 Cloth, $1.50. 



New Fragments. 



izmo. Clwth, $2.00. 

 D . APPLE TON AND COMPANY, NEW YORK. 



