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Show A Secret. It Is often very deslrablo to know how to seal a letter po tiint It cannot be opened without betraying the fact. Steam or hot water will upon envelopes enve-lopes closed with mucilage anil even n wafer. A hot Iron or u Fplrlt lamp dissolves sealing wax, an impression In plaslnr having been taken of tliu seal. Ily tlio combined uso of water nnd scaling wa. however, all nttompts to open the letter otherwise than by forco can bo frustiated. All that Is necessary Is to closo the letter first with a smnll moist wafer and to plerco the latter with a roarso needlo (tho snmo applies to mucilage), whereupon sealing wux may be used in the usual manner. This seal can neither bo opened by dry heat nor by moisture. |