346 Travels through Turkey] &c. 



under the name of Cimolus, is entirely volcanic. We re- 

 marked, with pleafure, that the Cimolean earth, which it 

 furni flies in abundance, is produced by a flow and gradual 

 ilecompofition of the porphyries occasioned by fubterranean 

 fires. I collected fpecimens of that earth in all the ftates 

 through which it paffes. This obfervation will be intereff- 

 ing, no doubt, to mineralogifts, and make them acquainted 

 with the origin of a fubftance hitherto little known. The 

 ifland of Milo is altogether volcanic. It prefents a vail port, 

 on the borders of which is a fpring of warm aluminous 

 water; a very warm grotto, where feather alum is formed; 

 a volcano ftill burning, and a prodigious quantity of cata- 

 combs. The ifland of Sanlorin is remarkable for the 

 changes effected in it by a volcano, and the linking down 

 of a great part of the ifland ; from which has remlted a kind 

 of port, more than two leagues in extent, and from the bot- 

 tom of which three ifles have been thrown up at different 

 known periods. The rupture occafioned by the almoft cir- 

 cular finking down of the ifland exhibits different ftrata of 

 volcanic fubftanccs, among which we obferved feveral kinds 

 of pozzolana. That which we fent to Conftantinople, and 

 of which 1 have fpecimens, may one day ferve for fuch ma- 

 ritime conftrucHons as the French may think proper to 

 make in Egypt, when they are once firmly efiabhflicd in 

 that country. 



We touched a fecond time at Rhodes, proceeded thence 

 to Baruth, and afterwards to Savd, with a view of going to 

 Damafcus to take advantage of the departure of a caravan for 

 Bagdad, as we had been taught to expecl ; but, the caravan 

 having departed a long time before, we were obliged to re- 

 turn and take the route to Aleppo. We were unwilling to 

 quit the coaft of Syria without paving at Tyre a tribute of 

 admiration to which that city was fojufilv entitled. 



As the road from Latakia to Aleppo is never fafe, we 

 waited fome days for the departure of a caravan. During 

 that time we tranfmitted to the national garden of plants 



a fifth 



