OUTLETS OF LAKE MAUMEE. 711 



Maiimeewas first applied in 1888 hjG. R. Dryer, of the Indiana Geological 

 Survey, in an official report on the "Geology of Allen County, Indiana," 

 which includes a discussion of the western ends of the beaches and the 

 Fort Wayne outlet.^ 



FORT WAYNE OUTLET OR WABASH-ERIE CHAISTNEL. 



The former extension of lake waters to Fort Wayne was known as 

 long ago as 1840, for Bela Hubbard makes reference to such an extension 

 in a State report published that year.^ It is probable, also, that the outlet 

 to the Wabash was recognized at that time, bvit the outlet seems to have 

 ' received its first careful examination by Gilbert about thirty years later, 

 during his investigation of the Maumee Valley for the Ohio Geological 

 Survey. He called attention to it in 1871^ and again in his official report 

 published in 1873.^ The outlet was very briefly described in each pub- 

 lication and no name was applied to it. The first name which it appears 

 to have received in print was that applied by Dryer in his report above 

 mentioned, where it is called the Wabash-Erie channel. This name, how- 

 ever, seems not to have met with such favor as the name Fort Wayne 

 outlet, which, though later introduced into the literature, has for several 

 years been in use among geologists, and is now quite common in print. 

 The term " Fort Wayne outlet" has the advantage also of being in harmony 

 with the nomenclature adopted for the other (Imlay) outlet, both being 

 from towns situated near the points where the outlets led away from the 

 old lake, and both being termed outlets. 



As indicated by Gilbert, the lake which formed the upper Maumee 

 beach discharged southwestward into the Wabash River. The outlet begins 

 about 2 miles west of New Haven, where the north and south shores cease 

 converging and turn westward in parallel courses to form the bluff's of the 

 stream. On reaching the Wabash the outlet has a length of fully 80 miles, 

 btit the enlargement due to the accession of the lake waters extends down 

 the Wabash many miles farther. The width ranges from 1 mile up to 



1 Sixteenth Ann. Kept. Geol. Survey Indiana, 1888, pp. 107-126. 



* Third Ann. Eept. of Dr. Douglas Houghton, pp. 102-111. Published as house document No. 8, 

 Detroit, 1840. 



'On certain glacial and postglacial phenomena of the Maumee Valley, by G. K. Gilbert; Am. 

 Jour. Sci., 3d series. Vol. I, 1871, pp. 339-345; see also a brief notice in Kept. Geol. Survey Ohio, 1870, 

 Columbus, 1871, p. 488. 



* Report on the surface geology of the iVlaumee Valley, etc. Geology of Ohio, Vol. 1, 1873, pp. 

 550-551. 



