32 

 Mechanical analyses. 



10 



BaJasan, Panay: 

 Snrfaee soil. 

 Snb'^oil 



Calamba Estate: 

 Surface soil- 

 Siibsoil 



Coarse 



and 1.0 



to 0. o 



mm.). 



2.63 

 1.59 



Medium Fine jVery flneLjii. ,„ «- 

 sand (0.5saiid 0.25sHiid t0.1\,,},:,)P 



t(>0.2.T to 0.1 i to 0.05 '0"""3 



mm.). mm.). I mm.). 



1.05 

 1.14 



12.06 

 9.56 



2.50 

 3.295 



mm.). 



23.33 

 30.72 



43.98 

 44. 42 



CIhv (less 

 than I 

 0. 005 I 

 mm.). 



24.33 

 21.11 



41.035 

 41.955 



No. 1: Rice soil, classed as first class in the San Francisco de Malabon Estate. 

 A sticky and tenacious black cla\\ Sample from one of best producing fields 

 near San Francisco de Malabon, Cavite. 



No. 2: San Francisco de Malabon soil, classed as second class. Shallow 

 rock found at 5 inches from surface. A lighter clay than No. 1. Does not 

 produce well. 



No. 3: Sugar-cane soil from Buena Vista. A loam; high land and unirrigated, 

 but produces a fair crop of cane. Located on San Francisco de Malabon Estate. 



No. Ji : First-class rice soil from Imus, Cavite. A heavy, black, sticky clay. 

 Produces good crops. 



No. 5: Second-class soil from Innis, Cavite. Lighter than No. 4. Lower 

 producing capacity, due chiefly to insufficient water supply. 



No. 6: Sugar-cane soil from Dasmariuas, Cavite. A loam; high land, un- 

 irrigated. Produces good crops. 



No. 7 : Six samples (3 of surface soil and 3 of subsoil) from Singalong experi- 

 ment station. 



No. S: Soil from BiSan, Laguna. Calculations based on sample dried at 

 100° C. 



No. 9: Sugar-cane soil from near Balasan, Panay. 



No. 10: Average of analyses of two samples of soils from the Calamba Estate. 

 The surface soil is a very dark, brown loamy clay, having an average depth of 

 50 centimeters, while the sub.-oil is a reddish yellow clay. 



No. 11: Surface soil to depth of 25 centimeters from fields of sugar cane near 

 San Fernando, Pampanga; a dark loam 20 to 25 centimeters in depth underlaid 

 by a yellow clay subsoil which, at about 1 meter from the surface, grades into 

 a fine yellow sand. 



Subsoil (25 to 50 centimeters) from soil type described above. 



No. 12: Surface soil from foot hills near Camp Stotsenburg, Pampanga. This 

 is a dark loam, abundantly supplied with organic matter to a depth of 20 to 25 

 centimeters, underlaid by a deep, yellowish clay subsoil. 



No. 13: Surface soil from sugar lands near Magalang, Pampanga. It is very 

 sandy to a depth of at least several meters, and hence is well drained. The sur- 

 face 30 centimeters of soil is well supplied with organic matter, being nearly 

 black in color. 



Subsoil of No. 13: This subsoil consists of a light colored sand, coarser than 

 the surface soil just described, but otherwise the only apparent dilierence between 

 the two is the organic-matter content. 



No. l.'f: Surface soil from the Tabacalera Estate, San Miguel, Tarlac. Descrip- 

 tion much the same as for No. 13, except that No. 14 contains more fine soil par- 

 ticles and less coarse sand. 



