156 HISTORICAL PALAEONTOLOGY. 
before remarked, this conclusion may be regarded as suff- 
ciently proved even by the phenomena of the British area ; 
but it may be said to be rendered a certainty by the study of 
the Devonian deposits of the continent of Europe—or, still 
more, by the investigation of the vast, for the most part un- 
interrupted and continuous series of sediments which com- 
menced to be laid down in North America at the beginning of 
the Upper Silurian, and did not cease till, at any rate, the close 
of the Carboniferous. 
LITERATURE. 
The following list comprises the more important works and memoirs to 
which the student of Devonian rocks and fossils. may refer :— 
(1) ‘Siluria.? Sir Roderick Murchison. 
(2) ‘Geology of Russia in Europe.’ Murchison (together with De 
Verneuil and Count von Keyserling). 
(3) ‘Classification of the Older Rocks of Devon and Cornwall”—‘ Proc. 
Geol. Soc.,’ vol. iii., 1839. Sedgwick and Murchison. 
(4) ‘f On the Physical Structure of Devonshire ;” and on the ‘‘ Classifi- 
cation of the Older Stratified Rocks of Devonshire and Cornwall” 
—‘ Trans. Geol. Soc.,’ vol. v., 1840. Sedgwick and Murchison. 
(5) ‘f On the Distribution and Classification of the Older or Palzeozoic 
Rocks of North Germany and Belgium”—‘ Geol. Trans.,’ 2d ser., 
vol. vi., 1842. Sedgwick and Murchison. 
(6) ‘ Report on the Geology of Cornwall, Devon, and West Somerset.’ 
De la Beche. 
(7) ‘Memoirs of the Geological Survey of Ireland and Scotland.’ 
Jukes and Geikie. 
(8) **On the Carboniferous Slate (or Devonian Rocks) and the Old 
Red Sandstone of South Ireland and North Devon ”—‘ Quart. 
Journ. Geol. Soc.,’ vol. xxii. Jukes. 
(9) ** On the Physical Structure of West Somerset and North Devon ; 
and on the ‘‘ Palzeontological Value of Devonian speenic Se 
Journ. Geol. Soc.,’ vol. iii. Etheridge. 
(10) ‘‘On the Connection of the Lower, Middle, and Upper Old Red 
Sandstone of Scotland” —‘Trans, Edin. Geol. Soc.,’ vol. i. part il. 
Powrie. 
(11) ‘The Old Red Sandstone,’ ‘The Testimony of the Rocks,’ and 
‘ Footprints of the Creator.’ Hugh Miller. 
(12) ‘* Report on the 4th Geological District” —‘ Geology of New York,’ 
vol. iv. James Hall. 
(13) ‘Geology of Canada,’ 1863. Sir W. E. Logan. 
(14) ‘ Acadian Geology.’ Dawson. 
(15) ‘ Manual of Geology.’ Dana. 
(16) ‘ Geological Survey of Ohio,’ vol. i. 
(U7) 2 Geological Survey of Illinois,’ vol. i. 
(18) ‘Paleozoic Fossils of Cornwall, Devon, and West Somerset.’ 
Phillips. 
(19) ‘ Recherches sur les Poissons Fossiles.’ Agassiz. 
(20) ‘ Poissons de Old Red.’ Agassiz. 
(21) ‘* On the Classification of Devonian Fishes’’—‘ Mem. Geol. Survey 
of Great Britain,’ Decade X. Huxley. 
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