TABLE of BRITISH STRATA 



Compilers : 



Henry Woodward, LL.D., F.R.S., F.G.S. 



Horace B. Woodward, F.R.S., F.G.S. 



MANY years have elapsed since the publication of a Table 

 of British Strata. The Table of British Sedimentary 

 and Fossiliferous Strata by Messrs. H. W. Bristow and 

 E. Etheridge and that by Mr. Bristow, showing the Belative 

 Thickness of the Strata, date back to 1873. 



Meanwhile many changes have been made in nomenclature, 

 and many new local subdivisions have been marked out in the 

 series of Strata. To represent these in tabular form as an aid 

 to the memory is one object of the present publication. 



The student should bear in mind that Nature does not draw 

 the hard and fast lines which appear in the Table, and that 

 the divisions, like those in human history, are epochs artificially 

 limited for the convenience of grouping events. In many cases 

 it is possible to indicate only the general position of the minor 

 divisions in the great series of geological formations. Minute 

 correlation of strata, dependent on organic remains, cannot here 

 be attempted. 



The aim of the compilers has been to represent as fully 

 and fairly as possible the views most widely accepted at the 

 present time, and thus in grouping the Wealden in the Jurassic 

 system and in retaining the Permian in the Palaeozoic era they 

 seek to assert general rather than individual opinion. 



Price 5s. net ; Folded in book form, 6s. net ; 

 Mounted on linen, with rollers and varnished, 16s. net. 



LONDON : 



DULAU & CO., LTD., 34-36 MARGARET STREET, 

 CAVENDISH SQUARE, W. 1. 



