. Dairy farming : being the theory, practice, and methods of dairying. Dairy farms; Dairy plants; Milk plants. 302 DAIRY FARMING. need of icr is fatal to its employment in the British Islands, exeept in isolated eases. Sueh, at least, is our opinion. Sxow .\ND Ice for Cooling Milk. Professor Fjord, of Copenhagen, has made many experiments in the storing of snow and iee for butter-making, and finds that if snow is collected at the time when thawing has commenced it can easily be trodden into a compact mass, having all the advantages of ice. Dry, newly-fallen snow, thrown loosely together, was f
. Dairy farming : being the theory, practice, and methods of dairying. Dairy farms; Dairy plants; Milk plants. 302 DAIRY FARMING. need of icr is fatal to its employment in the British Islands, exeept in isolated eases. Sueh, at least, is our opinion. Sxow .\ND Ice for Cooling Milk. Professor Fjord, of Copenhagen, has made many experiments in the storing of snow and iee for butter-making, and finds that if snow is collected at the time when thawing has commenced it can easily be trodden into a compact mass, having all the advantages of ice. Dry, newly-fallen snow, thrown loosely together, was found to weigh 13-6 lbs. per cubic foot; by hard treading the weight was increased to 2G-:i lbs. Thawed snow thrown to- gether without treading gave a mean of 3£-7 ll)s. of dry snow per cubic foot, and when well trodden a mean of 13"G lljs. per cubic foot. Ice thrown wit bout special care into the ice-house weighed 3G to lbs. per cubic foot. With extreme care in packing, so as to fill all crevices, the weight may be raised tn 53 lbs., but with a moderate expenditure of labour the weight will not exceed 45 lbs. the cubic foot. The cooling of 100 lbs. of milk from 83" to 36*^ will require S^.^lbs. of thawing ice, and as the milk has not only to be cooled, but kept cool from twelve to twenty-four hours, a further expenditure of ice will be required. With a properly-constracted cooler, in a room whose atmospheric temi^erature is 50", 39 lbs. of ice \vill be required for lOQlbs. of milk skimmed at the end of twelve hours, and ibl lbs. of ice if the milk is to remain twenty-four hours in the vessel. If the cooling vessel has no double casiug, and is not provided with a lid, the quantity of ice will be increased to 44.'S lbs. for twelve hours, and to 57 lbs. for twenty-four hours. In the case of dairies dealing with an average quantity of milk amounting to 50 gallons a day, in districts whose mean temperature for the year is 50", the quantity of ice required fo
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