162 Porto Rican Soils. 



Coral sand. — Drifted, incoherent beach sand, 24 to 36 inclies 

 deep, formed from coral and shells by wind and wave action, 

 underlain by a slightly loamy sand. Occupies low-lying lands on 

 coast, occasionally forming slight hills 15 to 20 feet above sea 

 level. Adapted to cocoanut trees. 



12 3 4 



Soil (3) 62 30 4 4 



Subsoil (1) 46 35 7 10 



Acres. 

 Arecibo to Ponce, P. R 2, 620 



Arecibo sandy loam. — Heavy red sandy loam, with an average 

 depth of 10 inches, underlain to a depth of 36 inches by a rather 

 tenacious clay loam. Found in valleys between outlying limestone 

 hills. Elevation between 30 and 100 feet. Naturally well drained. 

 Used for truck and fruit. Small area devoted to tobacco and sugar 

 cane. 



1 2 3 4 



Soil (1) 23 57 6 14 



Subsoil (1 ) -. 17 48 9 25 



Acres. 

 Arecibo to Ponce, P. R 2, 690 



Ponce sandy loam. — Brown sandy loam 14 to 36 inches or more in 

 depth. An alluvial soil occupying river deltas in the vicinity of 

 Ponce. The subsoil is a sandy loam heavier and darker than soil. 

 Sugar cane is the principal crop. Cocoanuts and Guinea-grass 

 also grown. There is a stony phase containing rounded stone 

 fragments, sometimes as large as 2 or 3 feet in diameter. This 

 phase is used only for pasture and at present has little value. 



1 i 3 4 



Soil (6) 10 43 35 12 



Subsoil (2) 2 22 57 20 



Acres. 

 Arecibo to Ponce, P. R 6, 550 



TTtuado sandy loam. — Coarse, yellow sandy loam, 7 inches deep, 

 representing soil of deforested area on. steep slopes of the lower 

 mountains around Utuado. Residual soil derived from igneous 

 rocks. Subsoil is a shallow, yellow sandy loam, grading intodecom- 

 posed granite and other igneous rocks. Little natural fertility, and 

 but little used, as a great part of the areas are too steep for culti- 



