PHILIPPINE CITRUS-FRUITS. 407 
From the data in Table I the average Bercentaee gross com- 
position of this variety of orange is: 
Constituent. Per cent. 
Peel 23.4 
Pulp and seeds 76.6 
Seeds 3.0 
Average weight of 788 oranges (grams) 138 
Average number of seeds in each orange 22 
The crop of 1913, which is at this time coming upon the 
market, is much below the average in size, and is an inferior 
product in every respect. This may be due partly to the im- 
mature condition of the fruit. 
TABLE I].—Chemical analyses of the juice of the naranjita from the crops 
of the years 1911 and 1912. 
Coltmonla2 25a 5 a eek Se ee I. I. Ill. IV. Vv. 
Wout 5, | Jan. 11, | Nov. 14,} Jan. 10, | Jan. 23, 
DEMO GE CDA 20222 225 aeoscseecescesccessoec 1911.2 | 1911.67] 1911.c | 1912.4} 1912 
Meni ty pl50/ th Owen eye ee Ae Iel0393) | Mae 1.0388 | 1.0470 |--_______} 
I SOLId Siesta ete ee eed 9.40 9.90 | 9.12 10. 93 41.80 } 
Sucrose 4.21 7.00] 4.18 5.19 7.11 | 
Reducing sugars sen deee eet Soe ee oe eon a 4.17 2.00 | 2.92 4.58 3.44 | 
} 
Protein (NX6. 25) 0.52 0.82 0.75 
0.35 | 0.43 | 0.43 | 
1.21 0.74 0. oF 
* A portion of Bais juice was bottled January 6, 1911, and sterilized by heating to 78° for 
two hours. 
> This juice was centrifuged thirty minutes, 50 grams of sucrose to the liter added, filtered 
through Berkefeld filters, and bottled in sterile bottles. 
© Juice from 10 average oranges purchased in the Manila market, expressed by gentle hand 
pressure. The high acidity and also the fact that the samples were purchased rather early in 
the season lead to the belief that the oranges were not ripe. 
aA portion of this juice was bottled with and without the addition of 5-per-cent sucrose, 
and then sterilized by heat. 
TABLE III.—Analysis of pulp, January 28, 1912.* 
Constituent. Per cent. 
Solids 12.70 
Sucrose 4.61 
Reducing sugars 1.94 
Protein (NX 6.25) 1.19 
Ash 1.36 
Citric acid 0.53 
Analysis of the ash of the pulp. 
NaCl 2.93 
SO. 2.52 
K.CO; 85.75 
2 The analysis of the juice expressed from this pulp is found in Table II, column V. 
