340 REPOKT — 1891. 



It will be noticed that tbe last two sections, Arbury and Catesby, differ 

 greatly from the more easterly ones. The Fish bed is totally different in 

 appearance and composition, and has developed into a Cephalopoda bed. 

 There are no Paper Shales, and no red sandy clay between the Transition 

 bed and Fish bed. It is very probable that the Fish bed of this district 

 embraces the fauna of all the beds from E to J of tbe general section. 

 The fossils would seem to indicate this ; indeed, we believe there is no 

 fossil from the beds E and P that is not included in the Fish-bed list. 



No crushed Ammonites, and no Aptychi, have been found in the Fisli 

 bed, where it has the abnormal characters just described. 



The last section opened is situate about a mile north of Chipping 

 Warden. The richly fossiliferous condition of the Transition bed liere 

 was made known by the investigations of Mr. E. A. Walford some yeoi's 

 ago, when the quarry was in work. The Transition bed at Chipping 

 Warden is softer and more easily worked than at any other place known 

 to us. This may perhaps partially explain the reputed richness of the 

 bed. . . 



Section at Chipping Warden. 



Ft. in. 

 1. Soil . 16 



D. — 2. Light-coloured calcareous clay. A few Belemnites 



and fragments of Ammojiites . . . .20 



Some fragments of whitish limestone in the upper 

 part are probably remnants of the Lower 

 Cephalopoda bed. 

 F 1 The lower portion is more >haly, and of a ruddy 

 colour, dark purple coloration at joints. 

 G, H, I. — 3. Fish Bed. — A limestone in two bands, upper part 

 in small irregular pieces easily broken, lower in 

 large slabs, none of it nodular, blue interior . .06 

 Ammonites Strangwaysi (very large'). 

 „ HolaiidreL 



„ acutus? (some smfill forms differing 

 07ilti a little from). 

 Fish remains (a for). 

 Euomplialus minntus, <Jr. 

 K, L.— 4. Transition Bed. — Clay and grey friable sandy marl, 

 very red in places, the marl only fossiliferous 

 apparently. Some small ironstone concretions and 

 crystallised^ carbonate, of lime in the lower part. 

 Most of the fossils from the Transition bed in the 

 list to follow have been at some time found at 



Chipping Warden (see list) 6 



M. — 5. Ferruginous limestone, similar to the rock bed, very 

 fossiliferous, particularly in lower part, mostly 

 broken shells. Large Belemnites., Peeten Imiularii, 

 P. dentatns, Pentaerinus, Rhynchonellatetrahedra, 

 ^■c. (L. 3 



6. Sandy marl, much resembling the Transition bed, 



but the fossils larger, man}' crushed and broken 

 shells, Rhynclionellw mostly as separated valves, 

 a few gasteropods . . . . . . .03 



7. A ferruginous limestone, verj- red exterior, usual fos- 



sils, depth ? 



The beds 5, 6, and 7 may collectively be regarded as the Marlstone 

 rock bed. 



