[parks] * PRESIDENTIAL ADDRESS 25 



the most part local. It would be tedious to consider them here; we 

 must in consequence limit our remarks to a few of the outstanding 

 achievements. 



The famous section at Levis was examined in detail by Raymond 

 in 1911, 1912, and 1913; he divides it into 25 stratigraphie units in 

 which he recognizes four distinct faunal zones. The famous Anti- 

 costi Island section, first reported on by Richardson 1853-1856, and 

 by Billings in 1886, was studied in great detail by Charles Schuchert 

 and W. H. Twenhofel. Both authors contributed a paper to the 

 Geological Society of America in 1910 containing an account of the 

 stratigraphy. Twenhofel supplemented this by a faunal description 

 published as Museum Bulletin No. 3 of the Geological Survey in 1914. 

 The subdivisions of Richardson and Billings are recognized, but new 

 formational names are adopted and very extended lists of fossils given. 

 The work is of continental importance in that the Gamachian series, 

 not elsewhere known in America, is recognized as the summit of the 

 Ordovician formations. The table of classification is given below: — • 



twenhofel's table of anticosti strata 



Silurian 



Anticosti series 



Chicotte 



Jupiter River 



Gun River 



Becsie River 

 Ordovician 



Gamachian series 



Ellis Bay formation 

 Richmond series 



Charleton formation 



English Head formation 

 Utica (?) 



Macastey black shale 



Gaspé, made famous geologically by the early efforts of Sir VVm. 

 Logan, and the Magdalen islands have furnished Dr. J. M. Clarke, 

 Director of the New York State Museum, with material for several 

 important publications: "Sketches in Gaspé," "Observations on the 

 Magdalen Islands," Geological Map of Percé," "Percé, a brief 

 History of its Geology," and "Microscopic Fauna of the Bonaventure 

 Formation." The geology of Gaspé likewise occupies a very promin- 

 ent place in Clarke's monumental work, "Early Devonic History of 



