mmitm de vfymt m mimes et des ressources 
bureau region u oe vente de cartes ^ 
1S35, CHEMIN STE-FOY, QUEBEC ^ 
~ — G1S 2PI 
Vi 
t lV ■ - 
Canada 
Department of Dimes 
Sir JAMES LOUGHEED, Minister; 
CHARLES CAMSELL, Deputy Minister. 
Ecological Surocg 
W. H. COLLINS, Director. 
Bulletin No. 33 
GEOLOGICAL SERIES, No. 40 September 14, 1921 
CONTENTS 
PALAEONTOLOGY: 
Faunal and sediment variation in the Anticosti 
sequence - - - - - - - W. H. Twenhofel 
New species of Devonian Crinoidea from northern 
Canada ------ Frank Springer 
The range of certain lower Ordovician faunas of 
* the Ottawa valley with descriptions of some 
new species Alice E. Wilson 
The fossil mollusean faunas of the marl deposits 
of the Ottawa district - - - - E. J. Whittaker 
Two new North American Cycadeoids - - G. R. Wieland 
OTTAWA 
THOMAS MULVEY 
PRINTER TO THE KING’S MOST EXCELLENT MAJESTY 
1921 
No. 1S64 
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