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GENERAL ARRANGEMENT. 
accurately determining the correspondence in age of forma- 
tions occurring in distant parts of the earth's surface ; hence 
a large and varied palseontological collection, such as that of 
the British Museum, is best arranged in the main upon a 
systematic or -zoological and botanical basis. A limited series 
showing the more characteristic rock-formations with their 
included fossil remains, of the British Isles, placed in chrono- 
logical sequence, is arranged in one of the galleries of the 
Geological Department. 
