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to-morrow is washday, but if I can I may write a little more, do you have Carbon, (or rock?), oil in Chicago, it comes from Allegheny is burned in a glass lamp that costs 50 cents, and costs about one cent a night, but great care is requisite to prevent its evaporating when not burning. Pa is trying it and thinks of getting a barrel at 50 cts a gallon, it is much cheaper than candles