REPORT OF THE DIRECTOR AND STATE GEOLOGIST 1903 9 



has appeared in various journals. Of the large number of 

 samples of gravels, sands and clays obtained by the Commission 

 referred to, small samples were allotted to the State Museum 

 and are now in Mr Woodworth's charge for such use as can be 

 made! of them. 



From the 6th of July to the 13th of August Professor Wood- 

 worth was granted leave of absence in order to' attend to his 

 duties as instructor in one of the summer schools of Harvard 

 University. On the 17th of August he proceeded to Norwood 

 N. Y., where he was joined by Professor Coleman of Toronto Can., 

 and, accompanied by that geologist, conducted a rapid review of 

 the shore lines and evidences of marine submergence lying between 

 Mooers Junction and Adams Center on the southern side of the 

 St Lawrence valley. The primary object of this expedition was 

 to obtain the expert advice of a geologist whose familiarity with 

 the similar phenomena on the Canadian side of the St Lawrence 

 and Ontario valleys was deemed of the highest value in settling 

 mooted points regarding obscure indications of shore lines in this 

 disrtriot. 



In the course of this examination, Professor Coleman found 

 marine shells (Macoma groenlandica) in clays on the outskirts 

 of Ogdensburg. Later, Messrs Coleman and Woodworth found 

 abundant traces of marine shells in stratified sands near the 

 boundary line between the towns of Lisbon and Ogdensburg, in- 

 cluding Macoma calcarea and one specimen of Cylichna alba, a 

 very rare shell within the limits of the State, the only other known 

 locality being that at Port Kent, where it was early noticed by 

 Professor Ebenezer Emmons, and where but two specimens have 

 been collected in the course of this investigation. These Ogdens- 

 burg localities are at an elevation of about 275 feet above the sea. 



At Norwood, sewer openings which were made in the summer 

 of 1903 revealed many new localities of marine shells, invariably 

 Macoma groenlandica. On the hill north of the village, those 

 shells were found in the clays from the; sewer trench at an eleva- 

 tion of 360 feet above the sea by the aneroid barometer, or an 

 elevation of, 370 feet according to the engineer's levels tied to the 



