u 1749. 



pendicular here, and the flates of vvhicfe 

 they confifl are black, with a brown caft$ 

 and divifible into thin fhivers, no thicker 

 than the back of a knife. Thefe flates 

 moulder as foon as they are expofed to the 

 open air, and the more is covered with 

 grains of fmall fand, which are nothing but 

 particles of fuch mouldered flates. Some 

 of the ftrata run horizontal, others ob- 

 liquely, dipping to the fouth and rifing to 

 the north, and fometimes the contrary way. 

 Sometimes they form bendings like large 

 femicircles : fometimes a perpendicular line 

 cuts off the ftrata, to the depth of two feet 5 

 and the flates on both fides of the line from 

 a perpendicular and fmooth wall. In fome 

 places hereabouts, they find amongft the 

 flates, a ftratum about four inches thick 

 of a grey, compact, but pretty foft lime- 

 ftone, of which the Indians for many 

 centuries have made, and the French at pre- 

 fent ftill make, tobacco-pipes*. 



Auguji the 5th. THIS morning, we con^ 

 tinued our journey by rowing, the contrary 

 wind hindering us from failing. The ap- 



pearance 



* This Hme-ftone, Teems to be a marie, or rather a kind 

 of ftone-marle: for there is a wfiitifli kind of it in the 

 Krim-Tartary^ and near Stiva or c fbebes t in Greece* which 

 is employed by the Turks and Tartars for making heads of 

 pipes, and that from the firft place is called Kejfekil, and in 

 the latter, Sea- Scum: it may be very eafily cut, but grows 

 harder in time. F. 



