CHAPTEK LIT. 



DlVIHG — THE FIRST DIVING-BELL — FIXED APPARATUS SUPPLIED WITH COM P MESSED Al B 

 THE SUBMARINE HYDROSTAT — OPERATIONS AT HELL GATE— DIVING APPARATUS — 

 SUBMARINE EXPLOSIONS — IMPROVED DIVING DRESSES — THEIR USE — WORK OF VARLOUE 

 KINDS DONE WITH THEM — INSTANCES OP THIS — SEEKING THE TREASURE OP THE HUS- 

 SAR — SUNKEN SHIPS IN 8EBASTOPOL — OPERATIONS IN MOBILE — THE DRY DOCK AT PEN 

 SACOLA BAY — THE BEAUTIES OF THE SUBMARINV WORLD — HABITS OP THE FISH — POS- 

 SIBLE DEPTH OF DESCENT. 



Not only have men in modern times sought to extend their 

 knowledge of the sea by dredging and sounding, but with the 

 appliances of modern science they have attempted to plunge 

 themselves into its depths, and provide the conditions there for 



The ancients, of course, knew that man was a breathing 



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