THE WORKS OF 



Prof. JOHN TYNDALL, LLD., F.R.S. 



L 



HEAT AS A MODE OF MOTION. 



One vol., i2mo. Cloth, $2.00. 



" My aim has been to rise to the level of these questions from a basis so elementary thai 

 a person possessing any imaginative faculty and power of concentration might accotn* 

 pany me." — From Author's Preface. 



II. 

 ON SOUND. 



A Course of Eight Lectures delivered at the Royal Institution of Great 

 Britain. One vol. With Illustrations. i2mo. Cloth, $2.00. 



11 In the following pages I have tried to render the science of Acoustics interesting to 

 fill intelligent persons, including those who do not possess any special scientific culture." ■ . 

 From Author's Preface. 



III. 



FRAGMENTS OF SCIENCE FOR UNSCIENTIFIC 



PEOPLE. 



A Series of Detached Essays, Lectures, and Reviews. One vol., i2mo. 

 Cloth, $2.00. 



M My motive in writing these papers was a desire to extend sympathy for science be- 

 yond the limits of the scientific public ... From America the impulse came which in* 

 duced me to gather these ' Fragments,' and to my friends in the United States I dedicate 

 them." — From Author's Preface. 



IV. 



LIGHT AND ELECTRICITY. 



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

 Britain. One vol.,* i2mo. Cloth, $1.25. 



" In thus clearly and sharply stating the fundamental principles of Electrical and Op- 

 tical Science, Prof. Tyndall has earned the cordial thanks of all interested in education."— 

 From American Editor's Prefacb. 



D. APPLETON & CO., Publishers, 



549 & 551 Broadway, N. Y. 



