8 BULLETIN 677; U. S. DEPARTMENT OP AGEICULTTJEE. 



Keyyort series. — The surface soils of the Keyport series are 

 grayish brown to brown in color and the subsoils are yellow and 

 friable to mottled drab and yellow and somewhat plastic in the 

 deeper subsoil. The surface soils are usually well drained, but arti- 

 ficial underdrainage is frequently needed on the heavier types. The 

 soils of this series are of limited extent, occurring chiefly around 

 Raritan Bay. The Keyport sandy loam, fine sandy loam, loam, and 

 clay loam have been mapped. 



Shrewshury series. — The surface soils of the Shrewsbury series 

 are gray to grajdsh brown in color and the subsoils are mottled gray, 

 yellow, drab, and green. The series is chiefly found in low areas and 

 slight depressions, and the deeper subsoils usually contain an ap- 

 preciable quantity of greensand. The Shrewsbury sandy loam, fine 

 sandy loam, loam, and silt loam have been mapped. 



Keanshurg series. — The surface soils of the types in the Keansburg 

 series are dark gray to black and well supplied with organic matter. 

 The subsoils are mottled gray, drab, and yellow and marked with 

 reddish iron stains. The presence of greensand can sometimes be 

 distinguished. The soils of this series occupy depressed, poorly 

 drained areas in the marl belt and require artificial drainage to be- 

 come of agricultural value. The Keansburg sand, sandy loam, fine 

 sandy loam, and loam have been mapped. 



Elkton series. — The surface soils of the Elkton series are ashy gray 

 to brownish gray in color, and the subsoils are pale yellow, becoming 

 mottled yellow and gray at lower depths. They are usually asso- 

 ciated with soils of the Sassafras series, occupying flat or depressed 

 areas where drainage is imperfect. Only the Elkton loam has been 

 mapped. 



Portsmouth series. — The surface soils of the Portsmouth series 

 are dark gray to black in color and well supplied with organic matter. 

 The subsoils are pale gray to nearly white, sometimes faintly mottled 

 with yellow. These soils occupy depressed and poorly drained areas, 

 chiefly along streamways and around the headwaters of swampy 

 streams. They are chiefly forested and require artificial drainage 

 before they are available for agricultural use. The Portsmouth 

 sandy loam and loam have been mapped in southern New Jersey. 



Hyde series. — The soils of the Hyde series are characterized by 

 their naturally poor drainage and by the black color of both soil and 

 subsoil to a depth of 3 feet or more. They are high in organic mat- 

 ter. They occupy low-lying and depressed areas along streams, 

 around stream heads, and in swampy upland positions. Thej^ must 

 be artificially drained before they can be cropped. Only the Hyde 

 loamy sand has been mapped in southern New Jersey. 



Freneau sene-s.— The surface soils of the types included in the 

 Freneau series are dark brown or mottled brown and reddish brown 



