RECORDS OF MEETINGS OF 1907 323 



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On the west, the Wyoming (Warsaw) valley probably had the Dale 

 valley, now occupied in part by the Little Tonawanda, as a western branch, 

 joining it north of Warsaw. The Warsaw valley is still believed to have 

 been continuous with the Upper Genesee valley, above Portageville, by way 

 of Glen Iris, as outlined by the speaker in 1894 and earlier. The valley 

 of Silver Lake joined the Warsaw valley somewhere near Silver Springs. 

 A narrower valley, now occupied by the Genesee from Gibsonville to St. 

 Helena, is continued by a buried gorge from that place to Portageville, 

 where it joins with the Warsaw-Glen Iris valley and another valley from 

 the northwest, to continue southward in the large valley now occupied by 

 the Upper Genesee. 



The Canasseraga valley, now occupied in part by the Genesee, was cut 

 by an independent stream. This is the largest valley of the region and 

 was that of the master stream. The Nimda-Cashaqua valley, generally 

 held to have been the former path of the Genesee, is probably only an inner- 

 lowland type of valley, carved on the contact between Portage shales and 

 Chemung sandstones. It may have been in part a tributary of the Genesee 

 at Portageville. The Canasseraga, above the junction of the Cashaqua, 

 is as broad and flat-bottomed as below that point, and was certainly con- 

 tinuous throughout, being carved by a single stream, the Tertiary Canas- 

 seraga, as suggested nearly fifteen years ago by the speaker. This river, 

 flowing southward, received as a tributary the Conesus, the valley of which 

 is broad and open to Scottsburg. Hemlock and Canadice rivers joined 

 southward, receiving another branch near Springwater, the united series 

 joining the Canasseraga by way of Wayland. Honeoye and Canandaigua 

 rivers joined near Naples having another eastern branch in West River. 

 Originally this series may have drained southward by way of Cohocton, but 

 may later have been captured by a branch of the Canasseraga. This pro- 

 position, however, needs careful study. Another branch of this system 

 seems to have been the Flint, the valley of which, traceable for twenty miles 

 or more, points tovvard the Cohocton outlet. Another system is represented 

 by the two branches of Keuka Lake, which have other branches uniting 

 with them southward. 



Other systems are represented by the valleys of the more eastern lakes. 

 So far as the study has proceeded, these valleys could only have been 

 formed bv a southward drainage, as outlined in Bulletin 45, New York 

 State Museum. 



The remainder of the paper consisted of a description of the gorges and 

 falls about Portage, illustrated with lantern slides. The successive stages 

 in the development of the lower falls received special attention. 



Dr. Kunz then presented a plan of development of the park as a means 

 for scientific education. 



