JOHN TYNDALL'S WORKS. 



Essays on the Floating Matter of the Air, in Be- 



lation to Putrefaction and Infection. 12mo, cloth, $1.50. 



On Forms of Water in Clouds, Rivers, Ice, and Glacier*. 

 With 35 Illustrations. 12mo, cloth, $1.50. 



Heat as a Mode of Motion. New edition. i2mo, 



cloth, $2.50. 



On Sound : A Course of Eight Lectures delivered at the 

 Royal Institution of Great Britain. Illustrated. 12mo. 

 New edition. Cloth, $2.00. 



Fragments of Science for Unscientific People. i2mo. 



New revised and enlarged edition. Cloth, $2.50. 



Light and Electricity. i2mo, cloth, $1.25. 

 Lessons in Electricity, 1875-'T6. i2mo, cloth, $1.00. 



Hours Of Exercise in the Alps. With Illustrations. 

 12mo, cloth, $2.00. 



Faraday as a Discoverer. A Memoir. i2mo, cloth, 



$1.00. 



Contributions to Molecular Physics in the Domain of 



Radiant Heat. $5.00. 



Six Lectures on Light. Delivered in America in 1872- 

 '73. With an Appendix and numerous Illustrations. 

 Cloth, $1.50. 



Farewell Banquet, given to Professor Tyndall, at Del- 

 monico's, New York, February 4, 1873. Paper, 50 cents. 



Address delivered before the British Association, assembled at 

 Belfast. Revised, with Additions, by the author, since the 

 Delivery. 12mo, paper, 50 cents. 



New York : D. APPLETON & CO., 1, 3, & 5 Bond Street 



