Abstract

                                There process of manuracture of "cream jaggery," a satisfactory rate of filtration is a sine qua non for the practical success of the method. The filtering apparatus as described in bulletin No. 39 of the Department of Agriculture, Madras, is, by no means, a perfect one and leaves much room for improvement. For the benefit of those who have not had access to the above bulletin, a short description of the method as recommended therein is presented below with a few remarks as to its working. The apparatus consists of a conical cylinder with. a perforated bottom 2) high with a diameter of 1 at the top and 1' at the bottom. (See Fig. 1 for laboratory model). It contains a layer of coarse washed sand at the bottom 4"-6" deep, and above this is a 6" to 9" layer of activated carbon. The boiled and skimmed juice is poured carefully on to the top of the acti- vated carbon layer.

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