32 STRATIGRAPHICAL GEOLOGY 



Lists of characteristic fossils will be given in this volume, to- 

 gether with figures of some of them. The student will, however, be 

 glad to know where he may find figures of other species, and he 

 may consult the following books with advantage : 



For Palaeozoic fossils a useful book is Baily's Characteristic 

 British Fossils, vol. i. (Palaeozoic), with 42 plates (1875). Copies 

 of this can still be obtained from Messrs. Dulau and Co., 37 Soho 

 Square, London. Price 10s. 



For Tertiary fossils Lowry's Chart of Characteristic Tertiary 

 Fossils can be recommended. (Stanford. Price 4s.) 



For fossil Crustacea Woodward and Lowry's Chart of Fossil 

 Crustacea is good, though not limited to British species. 



The more recent memoirs of the Geological Survey that is to 

 say most of those published since 1890 contain figures of some of 

 the characteristic fossils of the formations described. The memoirs 

 on the Jurassic rocks and on the Cretaceous rocks may be speci- 

 ally mentioned as containing many figures of fossils that will be 

 useful to the student. 



For illustrations of fossil plants and for information on their 

 structure Seward's Fossil Plants should be consulted (Cambridge 

 Nat. Science Manuals, two volumes, price 12s. each). Studies in 

 Fossil Botany, by D. H. Scott (A. and C. Black), is also excellent. 



As works of reference which ought to be found in every library 

 of scientific books the publications of the Palaeontographical 

 Society must be mentioned, for these volumes are the great store- 

 house of illustrations of British fossils. The annual quarto volume 

 of the Society costs only 21s., and contains parts of four or five 

 monographs, with from thirty to forty plates. The Society was 

 established in 1847, and a list of the monographs which have been 

 completed and of those which are in progress can be obtained from 

 Messrs. Dulau and Co. (Soho Square, London). The completed 

 monographs can be purchased separately, and include monographs 

 on Fossil Corals, Echinoderms, Brachiopoda, Trilobites, Devonian 

 Fossils, Mollusca of the Crags, Cretaceous Bivalves, and Ammonites 

 of the Lias. 



Another work of reference is Etheridge's Fossils of the British 

 Isles, vol. i. (Clarendon Press, Oxford, 1888), which is a complete 

 list of the fossils recorded from the Palaeozoic rocks of Britain up 

 to that year, showing the range of each species. 



PAL^OGEOGRAPHY 



The geography of the earth's surface has gone through a long 

 series of phases and mutations. Each period may be said to have 



