NOTES AND QUERIES. 



197 



Tabular View of the Permian Strata of the North-West of England, as 

 seen at shawk, west of carlisle, westhouse, south of klrkby lonsdale, 

 and Manchester, in the Descending Order. 





Shawk. 



>> LM 11UUSL. 



j\I Jill (*lH'S 1 ( ' 1" . 





Feet. 



Feet. 



Feet. 



1 ^TiftfYiiTi nT0n otiH fitiP ottoi mom i*on qa yi net ayipq 



X > Mill M i i . ! 1 . U < l i 1 M | l i l i -^ItllllLAl I tU OtUIUM Will 3 



300 



not seen. 



not seen. 



2. Red and variolated marls, containiii"; 



1 







sometimes, but not always, beds of lime- 

 stone and gypsum, with fossil shells of 



}■ 150 



traces of 

 them seen. 



300 



tlic genera Schizodus, Bakevellia, etc. 











4 



300 



50 



4. Lower New Red Sandstone, generally soft 



} < 



500 



500 









not seen. 



250 



not seen. 



G. Astlcy pebble-beds, containing common 









coal plants, but quite unconformable to 

 the upper coal-measures, termed by me 



^ not seen. 



not seen. 



GO 











NOTES AND QUERIES. 



Correlation or the Grey Chalk and Upper Greensand. — There is 

 no more important point to be settled in the physical geology of the Cre- 

 taceous formation than the determination of corresponding horizons over 

 different geographical areas of the Grey Chalk and Upper Greensand. The 

 stratigraphical range of fossils in each, and the collating of those of both 

 deposits from different localities with each other, would work out some 

 important results. It is too much, perhaps, to ask our readers who live in 

 chalk or greensand districts to send in lists of all the fossils they have col- 

 lected, — although we s] ould be very thankful indeed for such lists ; but by 

 drawing attention to two of the characteristic fossils of the Grey Chalk 

 which we have figured in Plate X., we shall possibly receive through the 

 kindess of our many friends, notices of the localities and strata in which 

 they know them to occur. To note the beds and the places in which col- 

 lectors have found these two shells will cost them a mere fraction of trou- 

 ble, while the result will be an indication of considerable value in deter- 

 mining the conditions of deposits, and the possible synchrony of those two 

 great deposits, and will help to bring isolated Cretaceous deposits into 

 place in the chronological scries. — S. J. Mackie. 



Subterranean Tki.ks at Purfleet. — Here ( Purlleet) was a ferry over 

 the Thames into Kent. That river made a breach and inundation at West 

 Thurrock in the year 1.0SO ; at which time subterranean trees were washed 

 out in as great numbers, and of the same kind of wood, as those found in 

 Dagcnham and Havering levels in 17<>7. (See Phil. Tr. No. 335, p. 478 ; 

 and Abridg. by EI. Jones, vol. iy. part ii. p. 211) ; and Morant's Essex, 

 vol. i.) 



Fulgurite near Macclesfield. — Besides the Mammalian bones from 



* The first four strata of the above scries. Professor Ilarkucss, F.K.S., in a line 

 natural section seen at Hilton Beck, north of Brou-li. estimates to he of 3U00 feet in 

 thickness. — Quarterly Journal of the Geological Society for A,agU8tj L862. 



