EXTRACTION TEST. 365 
grams or 182 piculs of 100-per-cent sugar, or 190 piculs of 96° 
sugar. At 9 pesos per picul (the price that could be obtained 
for this grade when the native No. 1 is worth 7 pesos),* this 
would be worth 1,710 pesos. Furthermore, as it costs about 
3 pesos per picul to raise and produce the native sugar, and 
about 4.5 pesos to raise and produce the central sugar, the re- 
spective margins of profit would be in accordance with the fol- 
lowing figures: 
Native Central 
process process 
(pesos). (pesos). 
Cost 606.00 855.00 
Receipts 808.00 1,710.00 
Difference 202.00 855.00 
It is evident that, compared with the central process, the old 
process gives a very low and unsatisfactory margin of profit when 
the cane is not of the best quality. 
If the purity of the cane had been such as to allow No. 1 sugar 
to be made by the native process, the sugar could have been sold 
for 7 pesos per picul. The approximate figures then would be: 
Native Central 
sugar sugar® 
(pesos). (pesos). 
Cost 606.00 855.00 
Receipts 1,414.00 1,710.00 
Difference 808.00 855.00 
a These are very low figures, since no allowance has been made for increased yield of 
sugar due to the increased purity of the cane. This would increase the extraction by about 
8 per cent of the available sugar. 
These figures show that when high-grade sugar can be made, 
the old process gives about as satisfactory returns as a small 
central. However, dependence can not be placed on the quality 
of sugar produced by the native process. It may run No. 1 
or No. 5, and the chances are in favor of the latter. In some 
districts the purity of the cane always runs high to the profit 
of the planters, but in the majority of instances the purity runs 
low, and as a result, and in spite of the use of skilled workmen, 
inferior sugar is produced at a small margin of profit. On the 
other hand, our results show that even when the conditions of 
manufacture and the quality of cane are poor, the modern sugar 
central produces a high-grade sugar at a comparatively low cost. 
si There is no definite difference between the price offered for 96° centrifu- 
gal and No. 1 native sugar, but the former is generally worth at least 
2 pesos more than the latter. 
