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HISTORICAL PALZONTOLOGY. 
‘Catalogue of the Cambrian and Silurian Fossils in the Woodward- 
ian Museum of Cambridge.’ Salter. 
‘ Characteristic British Fossils.’ Baily. 
‘Catalogue of British Fossils.’ Morris. 
* Paleozoic Fossils of Canada.’ Billings. 
‘Decades of the Geological Survey of Canada.’ Billings, Salter, 
Rupert Jones. 
‘ Decades of the Geological Survey of Great Britain.’ Salter, Edward 
Forbes. 
‘ Paleontology of New York,’ vols. i.-iii. Hall. 
‘ Paleontology of Illinois.’ Meek and Worthen. 
) ‘Paleontology of Ohio.’ Meek, Hall, Whitfield, Nicholson. 
‘Silurian Fauna of West Tennessee’ (Silurische Fauna des West- 
lichen Tennessee). Ferdinand Rcemer. 
‘Reports on the State Cabinet of New York.’ Hall. 
‘ Lethzea Geognostica.” Bronn. 
‘Index Palzontologicus.’ Bronn. 
‘ Lethzea Rossica.’ Eichwald. 
‘Lethzea Suecica.’ Hisinger. 
‘ Palzontologica Suecica.’ Angelin. 
‘ Petrefacta Germaniz.’ Goldfuss. 
‘Versteinerungen der Grauwacken-Formation in Sachsen.’ Geinitz, 
‘ Organisation of Trilobites’ (Ray Society). Burmeister. 
‘Monograph of the British Trilobites’ (Paleeontographical Society). 
Salter. 
‘ Monograph of the British Merostomata’ (Paleeontographical Society). 
Henry Woodward. 
Monograph of British Brachiopoda’ (Palzeontographical Society). 
Thomas Davidson. 
‘Graptolites of the Quebec Group.’ James Hall. 
‘Monograph of the British Graptolitidee.’ Nicholson. 
‘Monographs on the Trilobites, Pteropods, Cephalopods, Grapto- 
lites,’ &c. Extracted from the ‘Systeme Silurien du Centre de 
la Bohéme.’ Barrande. 
‘ Polypiers Fossiles des Terrains Paleozoiques,’ and ‘ Monograph of 
the British Corals’ (Palzontographical Society), Milne Ed- 
wards and Jules Haime. 
CEL AP WE Roots 
THE DEVONIAN AND OLD RED SANDSTONE 
PERIOD. 
Between the summit of the Ludlow formation and the strata 
which are universally admitted to belong to the Carboniferous 
