APPENDIX. 



Sc. baj. 



Granito rosato 6 



steatitico, detto volgarmente Granitone, 



bianco e verde 6 



Granitello 50 



Basalte nero d'Egitto , 10 



Orientale verde /o 



Verde di Memfi, volgarmente detto Serpentino antico 3 ,, 



Breccia d'Egitto di fondo verdino 8 



I soprammentovati prezzi si aumentano, non solo in pro- 

 porzione della mole, ma anche della bellezza della pietra o 

 marmo. Cosi, per esempio, il marmo detto Porta Santa se 

 abbia colorito piu acceso ; il verde antico se sia de macchie 

 bianche e di verde pieno ben rilevate ; e il granito porfiritico se 

 sia di color di porpora vivo., con grani di felspato bianco rom- 

 boidale ; avranno sempre pregio maggiore. 



No. IV. Account of the Hill of St. Gilles, near Liege. 



Lametherie (Theorie, v. 71) has described the hill of St. 

 Gilles, near Liege, adjacent to the river Meuse (which is seen 

 on the left, with the coal passing tinder it.) from Genette : as 

 in the plate here reduced, Dom. VI. 



The height of the hill is 3200 feet -, and it contains sixty- 

 one beds of coal, separated by other beds. Many of these beds 

 of coal and intermediate substances are composed of smaller 

 beds ; and, without doubt, the lowest beds of coal have not 

 been discovered. 



The beds of the chief hill form a concave curve ; but after 

 passing under the Meuse, they become horizontal under the 

 little hill on the left. They afterwards rise, and become 

 almost, vertical. 



On the other side, or right hand of the print, they are bent 

 like chevrons j while the intermediate beds assume the like 

 form. 



