69 



SUBSOILS. 



No. 



District. 



Silay, etc 



Bago 



Pontevedra-La Carlota _.. 



Binalbagan-Isabela 



IlOK-Cabancalan 



San Carlos 



Bais 



General average 



Fine 

 earth. 



Per ct. 

 96.04 

 98.47 

 89.60 

 99.76 

 99.52 

 91.17 

 98. 15 



K.,0. 



Per ct. 

 0.04 

 .11 

 .14 

 .13 

 .19 

 .32 

 .27 



96.10 



0.17 



Na.,0. 



Per ct. 

 0.09 

 .07 

 .22 

 .14 

 .21 

 .24 

 .22 



CaO. 



0.17 



Per ct. 

 0.52 

 .41 

 .88 

 1.45 

 3.36 

 1.80 

 4.09 



1.79 



MgO. 



Per ct. 



0.45 



.23 



.32 



.91 



1.31 



1.67 



2.03 



P.,0;v 



0.99 



Per ct. 

 0.6 

 .08 

 .14 

 .15 

 .17 

 .12 

 .13 



Vola- 

 tile 

 matter. 



Per ct. 

 0.09 

 .07 

 .11 

 .10 

 .09 

 .11 

 .10 



0.12 



Per ct. 



8.29 



10.08 



10.09 



10.10 



7.67 



8.01 



10.12 



0. 10 9. 19 



Mechanical analyses of Negros soils; OA^erages for the different districts. 



SURFA CE SOILS. 



SUBSOILS. 



Silay, etc 



Bago 



Pontevedra-La Car- 

 lota 



Binalbagan-Isabela . 



Ilog-Cabancalan 



San Carlos 



Bais 



General average. 



3.3 

 0.8 



12.0 

 0.3 

 0.3 



10.4 

 0.3 



0.90 

 1.25 



3.89 

 1.05 

 0.21 

 2.72 

 0.32 



4.49 

 5.86 



11.85 

 3.58 

 2.87 



10.23 

 1.50 



3.9 



1.48 



5.77 



14.20 

 13.99 



13.04 

 10. 45 

 16.67 

 13.90 

 9.91 



13.17 



21. 24 

 19.65 



11.30 

 19.94 

 24. 71 

 14.62 

 20.17 



18.81 



33.31 

 33.91 



33.43 

 43.91 

 42.36 

 36.95 

 46.13 



38.57 



25.83 

 25.21 



26.69 

 20.85 

 12. 91 

 21.59 

 22.25 



99.97 

 99.86 



100. 21 

 99.75 

 99.76 

 100. 01 

 100. 28 



22. 19 99. 99 



Considered as a whole, they may be said to be decidedly high in 

 lime, but only moderately so, although containing an ample sufficiency 

 in potash, phosphoric acid, and nitrogen for profitable sugar-cane gi^ow- 

 ing. As all but a small percentage of the entire soil is "^fine earth" — 

 that is, the portion passing a sieve 1 millimeter in diameter, which is 



