TRAVELS THROUGH 



tieri feftarum Indice^ Tab. 102. Fig. D. (. "White 

 clay in lumps, inclofed in the fand-ftone. d. A 

 mixture of fand and calcareous white mould. 

 e. Near Staggia fmall and decayed petrified {hells 

 in a yellow limeftone fomewhat fand- mixed. It is 

 obvious, that all thefe varieties in the fand-hills 

 are Owing to different ancient fedimentS of the Tea. 



From Staggia to Poggibonzi and Tavernelle, 1 

 obferved either limeftone under the fahd-hills, or 

 travertino fuperincumbent on them, and probably 

 produced by the Apennine waters; or the marl- 

 iills appeared bare without any covering. Thefe 

 marl-hills confided either of ductile and tough, 

 or petrified marl, which inclofed many blunted 

 limeftones and fome fea-mells. Thefe limeftonesi 

 appeared painted with iron-dendrites ; fom? worm- 

 f aten by pholades ; fome penetrate^ and crofled 

 with, veins of black horn-flint. 



From Fayer-nelle. towards Florence the foil con- 

 lifted either of thefe fand and fand-ftone hills, with 

 pyfter-fhells and incumbent travertino , or of marl.* 

 lulls with, detached limeftones ; or of grey lime- 

 Ilone, which formed fome hillocks, 



Some miles before I reached Florence, I ob 7 

 feyved on both fides of the Greve-river *,; argilla- 



- ceous. 



* The Greve-river offered the followiag rolled blunted 

 f ones. .. 



a. Grey 



