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SUPPLEMENT TO THE BRITISH 
found by himself in Fifesliire. Thus, from the Upper Carboniferous Limestone he 
mentions fourteen species, from the Lower Carboniferous Limestone thirty-one species, 
and from the Calciferous Sandstone series of the same County fourteen species. 
In 1879, in the 'Transactions of the Geological Society of Glasgow,' we find a paper 
by Mr. Robert Craig, of Langside, Beith, " On the Possils of the Upper Series of the 
Lower Carboniferous Limestone in the Beith and Dairy districts of North Ayrshire," 
in which some fifty-four species and named varieties are recorded ; but from these 
Sjjirifera pinffuis must be eliminated. 
We must likewise refer the reader to the Explanations of Sheets of Geological Map of 
Scotland, 9 (1877), 15 (1871), 22 (1872), 23 (1873), 24 (1869), 31 (1879), as well as 
to the ' Memoirs of the Geological Survey of Scotland '—32 (1861), 33 (1866), and 34 
(1864). In these important publications by the Geological Survey of Scotland will be 
found not only many geological and stratigraphical details, but likewise lists of the 
fossils and their localities, which have been carefully drawn up by competent 
palaeontologists. 
