jjjg IMPROVEMENT IN BRICKS. 



one we had ascended ; but by throwing our legs across it, a» 



would be done on the ridge of a house, and moving ourselves 



forward by our hands, we at length reached that part of it 



where it gradually widened itself and formed the summit of 



the cliff, which we found to have a perfectly flat surface, of 



the dimensions before stated. 



Thg planted, Judging this to be the most conspicuous situation, we here 



and the island p ] an t et j the jjuion, and left a botHe sealed up containing a 

 named Sabri- r *. . . „ , r ? 



Ka, small account or tne origin ot the lhiaud, and oi our having 



landed upon it, and naming it Sabnna Hand. 



Within the crater I found the complete skeleton of a 

 «Jby tbeetop- guard-fish, the bones of which, being perfectly burnt, fell to 

 **° a ^ pieces upon attempting to take them up; and by the ac- 



count of the inhabitants on the coast of St. Michael's, great 

 numbers offish had been destroyed during the early part of 

 the eruption, as large quantities, probably suffocated or poi- 

 soned, were occasionally found drifted into the small inlets 

 or bays, 



The island, like other volcanic productions, is composed 

 'it land C ° ™ principally of porous substances, and generally burnt to 

 complete cinders, with occasional masses of a stone, which 

 I should suppose to be a mixture of iron and lime-stone ; but 

 have sent you specimens to enable you to form a better judg* 

 ment than you possibly can by any description of mine. 



III. 



New Method of making Bricks, so as to form cheaper and 

 firmer Buildings, and useful underground Drains : by 

 John Stephens, Esq. of Reading, in Berkshire*, 



Sir, 



Bricks divided -*L HAVE sent, for the inspection of the Society of Arts, &c, 



fleadythiough, three closure bricks, which on examination you will find to 



have been cut three fourths of the way through in the middle 



* Trans, of tlie Soc. of Arts, vol. XXIX, p. 39. The silver medal 

 was voted to Mr. Stephens. 



by 



