CAUSES OF CLIMATAL CHANGE. 



DEDICATED TO 

 DR. T. STERRY HUNT, F.R.S., 



WHOSE WORK IN 

 THE CHEMICAL AND COSMICAL RELATIONS OF GEOLOGY 



IS BEYOND ALL PRAISE, 

 % AND IS DESTINED TO COMMAND 



IN THE FUTURE 

 EVEN GREATER ACCEPTANCE THAN IN THE PAST. 



