A TRIP TO PltOBOLlNGGO, 
555 
6. 
Kandang Jati of Spengler,.. 
■ • 
)? 
11 
20,000 
7. 
Pajarakan, Du Rook, 
.. 600 
55 
11 
24,000 
8. 
Jabung of Chinese Ki King, 
,. 250 
51 
11 
9,000 
9. 
Pahiton, Heirs of Praetorius, 
.. 600 
51 
» 
24,000 
184,000 
Of these Pahiton works with the machinery of De Rosen and Call, 
Kandang Jati with high pressure steam vacuum pans of van Blis- 
singen and Dudok van Heil, whereas the mills of Wanolangin, Ura- 
bul and Sumber Kareng work with the low pressure vacuum pans 
of Howard ; all the others have to use the usual open pans, after the 
old fashion. The mills of Nos. 2, 3 and 4 defecate their cane juice 
in double bottomed copper pans, heated by steam in the same way 
as in the process of De Rosen and Call, but Mr. Etty seems to have 
a supreme contempt for filtration though animal charcoal. The 
most favorable results have been yielded by the mill of Sumber Ka¬ 
reng, which had its first crop in 1840, being then a new contract. 
The two first years they worked on the old system and subsequently 
with Howard’s vacuum pans. 
in 1840 they got 8,186 piculs. 1 ... 
1841 . 10,641 „ jopen pans. 
1842 
1843 
1844 
1845 
1846 
53 
55 
55 
55 
55 
20,776 
21,271 
20,000 
27,000 
55 
55 
35 
55 
With Howard’s vacuum pans. 
Thus in 1846 they make more than 50 piculs per bau, and out of 
the 27,000 piculs delivered to Government, 20,000 are No. 18.—■ 
Umbul has also proved the great advantage of Howard’s system; 
till 1840 they worked in the old way, making only on an average 
0,000 piculs per annum, or about 17 piculs per bau ; since then they 
used Howard’s pans, and 
in 1844 made 22,164 piculs or 42 piculs per bau 
in 1846 ,, 24,000 „ 46 „ „ nearly; com¬ 
pared with these results, the expensive machinery of De Rosen and 
Cail, put up at Pahiton, must still make a good deal more sugar per 
bau before it can compete with, much less excel, the more simple 
and less costly apparatus of Howard. 
The establishments of Holmberg de Beckfelt and Lucassen are 
situated in Tagal, and at first promised no very flattering results; 
Mr. Lucassen has in a late number of the Tijdschrift voor Neder- 
lands Indie (8 jaargang 10 afl.) published the results obtained at the 
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