THE GROWTH OF COAL. 



DEDICATED TO THE MEMORY OF 



DR. SCHIMPER, 



OF STRASBURG, 



The Author of "La Flore du Monde Primitif," and 

 many other contributions to fossil botany, 



AND OF 



DR. H. R. GOEPPERT, 



WHOSE Essay on the Structure and Formation of Coal 

 WAS One of my first Guides in its Study. 



