atter contained in the sugar
canes.

M. Duprez, an agent of the French Government, having experimented on
the canes in Guadaloupe, found the quantity of juice in every 100 lbs.
crushed--

lbs.
1 By mills having horizontal rollers; the
motive power not stated 61.2
2 By mills, motive power, steam 60.9
3 By mills, motive power, wind and steam 59.3
4 By mills, having vertical rollers 59.2
5 By mills, motive power, cattle 58.5
6 By mills, motive power, wind * 56.4

[* Dr. Evans' "Treatise on Sugar," p. 75.]

The average of all these experiments being 56 per cent. only. The
result of M. Avequin, on Louisiana cane, was 50 per cent. Mr.
Thompson, of Jamaica, states 50 per cent. as the average throughout
the island of Martinique. Dr. Evans ventures 47 per cent. as the
lowest, and 61 per cent. as the highest in the West Indies. A mill in
Madeira gave 47.5 and 70.2 of juice--the larger yield being obtained
by bracing the horizontal rollers more than usually tight, and
introducing only a few canes at a time, the motive power being cattle.

The three roller mill has the disadvantage of re-absorbing a part of
the cane juice in the spongy megass, (or trash as it is termed in the
West Indies), and a loss of power.

Those with five rollers have been used in Cuba, Bourbon and the
Mauritius, which gave 70 per cent., but a great increase of motive
power is necessary. Four roller mills, two below and two above,
requiring little more motive power than three rollers, have given 70
to 75 per cent of juice.

Some years since, the East India Company instituted inquiries relative
to the cultivation of the sugar cane in Hindostan, and the information
obtained was published in a large folio volume. The Reports furnished
by their officers, from almost every district, concur in stating that
there were three kinds cultivated:--1. The purple. 2. The white. 3. A
variety of the white, requiring a large supply of water. The epitome
of the Reports affords this information:--

1. The purple colored cane yields a sweeter, richer juice, than the
yellow or light colored, but in less quantity, and is harder to press.
Grows on dry lands. Scarce any other sort in Beerbhoom, much in
Radnagore, some about Santipore, mixed with light colored cane. Grows
also near Calcutta; in some fields separate, in others mixed wi