UPPER PORTION OF DUNDRY HILL. 213 



From the Stratal portion of this Table it may be seen 

 that there is a break in the due sequence of deposits at 

 Dundry Hill. As a matter of fact, this break in the 

 sequence is least in the middle of the hill ; but to the west 

 it is greater, so that strata of the GarantiancB hemera rest 

 directly upon strata of the Sonninice hemera ; while to the 

 east it is very marked — the strata of the GarantiancB hemera 

 resting directly upon those of the Dumortierice hemera. 



In regard to the Fannal portion of the Table we may say 

 that it only claims to be an approximate record, by no 

 means complete. It is partly the result of collecting during 

 the work of noting the different sections ; but much of it is 

 compiled from our knowledge of specimens collected during 

 previous years by ourselves and by other geologists.^ We 

 are enabled to state more or less approximately the geolo- 

 gical date of the species so collected by observation of the 

 character of the matrix ; for it may be seen from our sections 

 that the deposits made during different times are easily 

 recognisable by their lithic characters. Cases of doubt of 

 course occur, and such cases are marked by the placing of 

 a note of interrogation before the generic name. 



VI. Correlation with Deposits of other Areas. 



A knowledge of the Faunal Sequence at Dundry makes 

 it possible to correlate its deposits with similar deposits in 

 other parts of the country, and with those upon the Conti- 

 nent of Europe. In fact, when the hemeral date of any 

 deposit in any locality has been ascertained by a correct 



^ We are indebted not only to those geologists by whose labours the 

 Bristol Museum has been enriched in the past, but also to those who 

 have done so much work at Dandry Hill in the present, Mr. J. W. D. 

 Marshall, Mr. .J. W. Tutcher, Mr. A. Vauglian, B.Sc. , and other members 

 of the Bristol Geologists' Association, to whom we owe our best thanks 

 for kindly submitting specimens for our examination. 



