185 (Economy of Light. — Information to Mariners , ^c. 



about three quarters of a mile from the breakers, in eigh- 

 teen fathom water, on a coral bottom. 



There is no inhabitant on the island ; nor was any fresh 

 water found ; but cocoa nuts of very large size are in great 

 abundance ; and fish of various kinds, and in great shoals, 

 surround the island. 



A gieat quantity of drift wood lay on the beach, which 

 enabled those who landed to ascertain that the rise of the 

 tide was about eighteen inches. 



CECONOMY OF LIGHT. 



We announced some lime ago that Mr. Paul, of Geneva, 

 had effected a considerable improvement in lamps for streets. 

 We understand that his invention has since been extended 

 to lamps for domestic purposes, possessing the property of 

 effecting the perfect combustion of common lamp oil, which 

 costs only about the half of spermaceti oil, and yielding a 

 cheerful, bteady, and durable light, without smoke or smell. 



INFORMATION TO MARINERS. 



The followina; article \\as furnished by captain Candler, 

 \%'ho arrived at Boston on the 8lh of August in the schooner 

 Betsey, from Madeira : 



" bn the 29th of May I was running for the western 

 islands, when I made something which appeared like a sail, 

 but, as I approached it nearer, discovered it to be a rock, the 

 top of which was nearly 100 feet out of water, and, from 

 appearance, deep water all round about it. It blowing very 

 hard, I was not able to sound, or examine the rock any 

 further than by running within a cable's length of it on the 

 northern side. By observation I found it lay in lat. 39" 

 47' north, and, by calculation, in long. 34° 29' west. The 

 situation of this stupendous rock may be relied on, as I was 

 very particular in my course and distance till I made the 

 land, which was the third day after : I then made Fayal. 

 As T never saw a rock laid down in this situation, I think 

 it my duty to give this information to the public. 



(Signed) John Candleii." 



VOLCANOES. 



Letters fi-om Petersburgh, of the 20th October, mention, 

 that near the southern angle of the fortress of Fanagorji, a 

 bill on the summit of a mountain, situated contiguous to a 

 lake of 300 fathoms in circuit, began to swell on the 4th of 

 July last, between twelve and one o'clock at night. The 

 hill rose about twelve fathoms, a»d then burst, with light- 



nintr 



