10 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I49 



the land slopes gently up to 360 feet, beyond which comes a steep 

 climb to 530 feet. Figure 2 shows the Morley terrace near Benton. 

 Profiles a few miles northwest of Morley are shown in figures 3 and 4. 



The Morley terrace is well preserved in the southern part of the 

 Puxico, Mo., quadrangle, where it slopes upward from 325 feet at 

 Ash Hill, Fisk, Lakeview School, and Cypress School to 360 feet at 

 the shore line in sections 21 and 22, T. 26 N., R. 8 E., above which 

 the land rises to 447 feet at Asherville, one quarter mile from the 

 shore. The lower parts of this area appear to have been graded in 

 pre-Morley time by a large river, presumably an early course of the 

 Mississippi. Meander scars of this river pass southwest of Edmunson 

 School and east of Cypress Lateral Ditch No. 1. The divide between 

 this ditch and Lick Creek Ditch stands at 355 feet at Wilkerson School 

 and 357 feet at Dudley. 



The western shore of an island in the Morley bay lies near the 

 360-foot contour line on the Puxico quadrangle, passing 1 mile west 

 of Aid, 1 mile west of Greenwood School, and near Howell School. 

 The island stood 140 feet higher west of Garner School, where the 

 present altitude is more than 500 feet. 



The Morley shore line has not yet been traced along the Atlantic 

 seaboard although the terrace is represented there. Much of the area 

 where it occurs is highly dissected and still unmapped. The surface 

 of the Brandywine gravel above 275 feet in Maryland probably forms 

 part of this terrace. Flat areas in South Carolina higher than the 

 Hazlehurst terrace (shore line 275 feet) presumably are remnants of 

 the Morley terrace. 



In Georgia, the Morley terrace should be sought in the un- 

 mapped area between the Okefenokee Swamp and Tifton, where it 

 probably lies somewhere northwest of the railroad connecting Valdosta 

 with Waycross. The terrace also occupies the eastern part of the 

 Dougherty Plain (Cooke, 1925). The Morley shore line, much eroded, 

 forms the boundary between the Dougherty Plain and the Tifton 

 Upland (Cooke, 1925). It passes about 4 miles west of Sylvester. 



A well-preserved plateau around 300 feet extending eastward from 

 Mt. Pleasant, Gadsden County, Fla., and northward into Decatur 

 County, Ga., evidently is the lower part of the Morley terrace unless 

 it is bounded by an unrecognized shore line lower than 360 feet. 



A broad plain in western Escambia County, Ala., slopes from 

 360 feet at the northern edge of the Huxford quadrangle southward 

 across the Atmore quadrangle to 280 feet at the Florida line, a distance 



