taining "from 10 to 40 per cent, of water-worn pebbles, which 

 rarely exceed the size of a man's thumb." As every one who lives 

 in Hartsville knows, the soil does not contain such pebbles. Even 

 the boy with the slingshot never found them out. This type is 

 shown as extending to the foot of the hill towards the lake, and 

 there being replaced by the Norfolk sand, which composes the 

 flat valley, and with some interruptions extends up into the sand 

 hills a mile or more, where it merges into the "Sandhill" type. 



The plantation immediately south of the town is of the Golds- 

 boro compact loam type (according to the above-mentioned 

 report), which may be said to correspond roughly to the flat- 

 woods. 



The plant formation that I describe as well-drained upland 

 forest, which should include, I think, most of the area covered 

 by the town and the hill slope to the north, seems to be typically 

 characterized by the type of soil called Norfolk sandy soil by the 

 Survey. 



In describing the vegetation of the region it will be best to dis- 

 tinguish the principal plant formations and then to take up each 

 in turn. Including the sand hills, streams and swamps, as well as 

 the various distinctive areas of the level uplands, we may dis- 

 tinguish in the vicinity of Hartsville as many as six ecological 

 divisions or areas, as follows : 



1st — The Sand Hills, or Pine Barrens. 



The soils are extremely porous and composed very largely of 

 sand, the surface specimen analyzed by the U. S. Soil Survey 

 showed 94.78 per cent, coarse and fine sands and only 0.77 per 

 cent, of organic matter. The subsoil is a yellow sand of the same 

 texture, and of slightly higher clay content. In lower spots the 

 proportion of humus is much greater and the soil is denser and 

 damper. 



2nd — The Well-drained Upland Forest. 



The soil is that of the Norfolk sandy loam which is described 

 as follows by the Survey : 



It "consists of from 12 to 24 inches of a gray sandy loam, not 

 unlike the soil of the Goldsboro compact sandy loam. A super- 

 ficial examination might not suffice to distinguish the two types, 

 but the subsoil gives rise to a variation in crop production which 

 is quite evident. This subsoil is a sticky yellow loam or clay, 

 which contains enough medium and fine sand, however, to render 



