Extracts from the Minute Book of the Geological Society. 44*7 



about 65". Here are many rich veins of lead, which generally 

 occur in large veins of quartz in sandstone. The schistus of this 

 island, on the side opposite to Andros, is well calculated for slates ; 

 that opposite Miconi is very micaceous. 



1815, November 3. 



Dr. Traill presented to the Society some magnetic iron sand, 

 mixed with much iserine, accompanied with a letter, of which the 

 following is an extract. 



" I send you a bag filled with magnetic iron sand, mixed with 

 much iserine, which I discovered more than two years ago in the 

 hundred of Wirral, in Cheshire. It occurs on the shores of the 

 Mersey, opposite to Liverpool, at Seacome Ferry. After heavy- 

 rains it oozes out of a deep bank of clay ; but I strongly suspect 

 that its matrix is the coarse reddish brown sandstone of the country, 

 which, near Seacome, contains many quartzy nodules." 



In a subsequent letter (dated 26th October, 1816) Dr. Traill 

 says, " After the heavy rains of this summer, I have traced the 

 magnetic iron sand and iserine for several miles along the' coast. 

 They are washed out of a bed of cohering sand that lies below the 

 clay, and may be considered as entering largely into the Geological 

 composition of that part of Cheshire." 



1815, December 15. 

 A Letter from the Rev. Archdeacon Barnes was read, dated 

 Bombay, March 31, 1815. In this letter Mr. Barnes communi- 

 cates, on the authority of Mr. Copeland, Assistant Surgeon to the 

 European force in the Guzerat, some particulars relative to the car- 

 nelians of Cambay. 



These are all procured from the neighbourhood of Broach, by 



J l 2 



