One Hundred Pounds Of Cane Under This Process Yield Up From Sixty-Five To Seventy-Five Pounds Of Juice.

This juice passes, as a pale green cataract, into a trough, which conducts it into a vat, where it is dosed with quicklime to neutralize its acid, and is then run off into large heated metal vessels.

At this stage the smell is abominable, and the turbid fluid, with a thick scum upon it, is simply disgusting. After a preliminary heating and skimming it is passed off into iron pans, several in a row, and boiled and skimmed, and ladled from one to the other till it reaches the last, which is nearest to the fire, and there it boils with the greatest violence, seething and foaming, bringing all the remaining scum to the surface. After the concentration has proceeded far enough, the action of the heat is suspended, and the reddish-brown, oily-looking liquid is drawn into the vacuum-pan till it is about a third full; the concentration is completed by boiling the juice in vacuo at a temperature of 150 degrees, and even lower. As the boiling proceeds, the sugar boiler tests the contents of the pan by withdrawing a few drops, and holding them up to the light on his finger; and, by certain minute changes in their condition, he judges when it is time to add an additional quantity. When the pan is full, the contents have thickened into the consistency of thick gruel by the formation of minute crystals, and are then allowed to descend into an heater, where they are kept warm till they can be run into "forms" or tanks, where they are allowed to granulate.

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