PROFESSOR JOHN TYNBALL'5 WORIS. 



JEisaye on the Floating Matter of tht Air, in Belatlon 

 to Futrefaction and Infection. 12mo. Cloth, $1.60. 



On Forms of Water, in Clonds, Eivers, Ice, and Gla- 

 ciers. With 85 IllnBtntions. 12mo. Cloth, $1.50. 



Heat ae a Mode of Motion. New edition. 12mo. 

 Cloth, $2.S0. 



On Sound: A Conrse of Biglit Lectures delivered at 

 the Boyal Institution of Great Britain. Illustrated. 

 12mo. 'Sew edition. Cloth, $2.00. 



Fragments of Science for Tlnscientiflc People. 12mo. 



New revised and enlarged edition. Cloth, $2.60. 

 Light and Electricity. 12mo. Cloth, $1.25. 

 Leesona in Electricity, 1775-'76. 12mo. Cloth, $1.00. 

 Hours of Exercise in the Alps. With Illustrations. 



12mo. Cloth, $2.C0. 

 Faraday as a Discoverer. A Memoir. ISmo. Cloth, 



$1.00. 



Contrilmtims to Molecular Physics in the Domam of 

 Badiant Heat. $5.00. 



&3! Zectures on Light. Delivered in America in 

 1872-'78. With an Appendix and numerous Illus- 

 trations. Cloth, $1.50. 



Farewell Banmet, given to Professor Tyndall, at Del- 

 monico's, Mew York, February 4, 1878. Paper, 

 50 cents. 



Address delivered before the British Association, 

 assembled at Belfast. Bevised, with Additions, 

 by the author, since the Delivery. 12mo. Paper, 

 50 cents. 



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