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stone ; 2. four inches of clay, intermixed with lime ; 3. two feet two 

 inches of a foliated marly clay, with traces of bitumen ; 4. one foot of a 

 calcareous schist of a yellowish grey, intermixed with flakes of rather 

 bituminous clay; 5. eight feet of a fissil schist, partly calcareous, in thin 

 plates, and alternating with beds of friable clay; 6. twelve feet of a hard 

 fawn-coloured lime-stone, formed in flags and in beds, possessing more 

 or less thickness; but very thin in some parts, and having the divisions 

 marked by fine traces of a brown matter, which yields a bituminous 

 odour with heat. In this stone are found the fish, and with them shells, 

 insects, some small amphibiae, and the impressions of leaves. 



At Aix, in Provence, M. Faujas informs us, fossil fish are found, re- 

 sembling, in their size and state of preservation, those of Vestena Nuova. 

 This quarry is formed of 1. a schistose marie, of many feet in thick- 

 ness, which forms the roof; 2. a white calcareous stone, containing about 

 one fourth of clay ; 3. a pretty hard calcareous bed ; 4. a schistose marie, 

 like that of the roof, containing crystals of selenite ; 5. to this succeeds a 

 fissile stone, a mixture of lime, clay, and bitumen, of a light yellowish 

 grey colour, detaching in flakes, on which are discovered the remains 

 and impressions of fish, which are in general well preserved, and are 

 from six inches to even two feet in length. The extinct volcanoes of 

 Beaulieu are about three leagues distant. 



At Montmartre the remains of fish are also found in a marley lime- 

 stone, which is over the plaster quarry ; but the bed in which the fossil 

 fish are found at Aix, is beneath the plaster-stone. From Nanterre, 

 near Paris, M. Faujas obtained a fossil fish, more than ten inches long, 

 in solid lime-stone, taken from seventeen feet below the surface. This 

 fish, he thinks, bears a near resemblance to Coiyphena chrysums, Lace- 

 pede. M. Faujas himself discovered, halfway up the side of the moun- 

 tain on which is built the castle of Rochesauve, and beneath more than 

 twelve hundred feet of what he terms lava of different kinds, surmounted 

 by vast basaltic masses, a fine and light grey marie, in which existed 



