THE WORKS OF 



Prof. JOHN TYNDALL, 11. D., F.R.S. 



v. 

 HOURS OF EXERCISE IN THE ALPS. 



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



" The present volume is for the most part a record of bodily action, written partly to 

 preserve to myself the memory of strong and joyous hours, and partly for the pleasure of 

 those who find exhilaration in descriptions associated with mountain-life." — From Author's 

 Preface. 



VI. 

 FARADAY AS A DISCOVERER. 



One vol., i2mo. Cloth, $1.00. 



" It has been thought desirable to give you and the world some image of Michael 



Faraday as a scientific investigator and discoverer I have 



returned from my task with such results as I could gather, and also with the wish that 

 these results were more worthy than they are of the greatness of my theme." — The 

 Author. 



VII. 



FORMS OF WATER, IN CLOUDS, RAIN, RIVERS, ICE, 



AND GLACIERS. 



This is the first volume of the International Scientific Series, and is a valu- 

 able and interesting work. One vol., l2mo. Cloth, $1.50. 



VIII. 



CONTRIBUTIONS TO MOLECULAR PHYSICS IN THE 

 DOMAIN OF RADIANT HEAT. 



A Series of Memoirs published in the " Philosophical Transactions " and 

 " Philosophical Magazine." With Additions. 



D. APPLETON & CO., Publishers, 



549 & 551 Broadway, N. Y. 



