

&0 



ON 



COBAL REEFS AND ISLANDS. 



BY 



JAMES D. DANA, 



GEOLOGIST OF THE EXPLORING EXPEDITION AROUND THE "WORLD DURING 

 THE YEARS 1838 — 1842, C. WILKES, U. S. N., COMMANDER. 



" We -wandered -where the dreamy palm 

 Murmured above the sleeping -wave ; 



And through the waters clear and calm 

 Looked down into the coral cave, 



Whose echoes never had been stirred 



By breath of man or song of bird." 



THULIA, J. C. PALMER, U. S. N., EXPL. EXP 



► m 



FROM THE AUTHOR S EXPLORING EXPEDITION REPORT ON GEOLOGY, WITH ADDITIONS. 



^*4M ■ ■ 



NEW YORK: 

 G. P. PUTNAM & Co. 



1853. 



