212 TlMEHRl. 
which lost one pound in weight, leaving 10 per cent, fibre, having 
extracted 80 per cent, of the weight of the canes and lost 10 per cent, 
by evaporation : the available amount of juice contained in the cane 
was 90 per cent, and having extracted 80 per cent, of this quantity the 
mill really extracted 8888 of the available amount of cane juice con- 
tained in the sample. I omitted weighing the juice in this experiment 
also. 
Third Experiment. — I operated again on ten pounds of cane, varying 
slightly in quality to those in second experiment, and I obtained 2 lbs. 
1 ounce of green megass, equal to 79'375 per cent, of the weight of 
cane passed through the mill ; by drying the megass for five days, it 
lost 1 lb. 2 ounces, making the fibre n'25 in the cane, and lost by 
evaporation 9^375 which being added to the extraction 79'375 of the 
weight of the cane, making 8875 available amount of juice contained 
in the cane. The mill having extracted 79375 of an available 8875 
contained in the cane, amount to 8943 per cent, of the available amount 
contained in the cane. In this experiment 1 weighed the juice and the 
megass as follows : — 
lbs. oz. 
Green Megass 2 1 =20'625 per cent. 
Juice 7 15 =79'375 
In adopting the new arrangement to existing mills now in use, the 
introduction of two new headstocks and fittings will be required, the 
present rollers now in use being retained ; the foundation and the liquor 
plate arrangement will remain undisturbed. The centre of top roller of 
improved mill being higher than the ordinary Mill of equal dimensions, 
owing to placing the cane roller directly under the top roller, will 
necessitate the raising of the main driving shafts of mill to suit require- 
ments of new mill ; this can be accomplished by either elevating the 
present pillow blocks, or introducing new ones. 
The introduction of Stewart's Hydraulic arrangement, a meritorious 
invention, now in general use in the colony, and which has considerably 
increased the yield of Cane juice from the Mills in general use, is 
equally applicable to the new arrangement, and can be applied in the 
usual way to the last crushing roller. 
From the mechanical inventive genius of this gentlemen, engineers 
are now enabled to calculate the pressure in Tons, the amount of work 
