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20 Large assortment of [[underlined]] phonograph discs [[/underlined]] arrived [[underlined]] from Victor Company [[/underlined]] Spent most of day [[strikethrough]] lis [[/strikethrough]] trying them until I was tired. Dec 10. Fine cold weather Still [[underlined]] digging at coal [[/underlined]] bin: Tried more phonographs this morning At 4 P.M went to office to meet [[underlined]] Thurlow [[/underlined]] to sign application joint patent hexa metylamin [[underlined]] chlorhydrate [[/underlined]]. Thurlow tells me he has found in methyl and [[underlined]] ethyloxialates excellent substitutes for [[/underlined]] [[end page]] [[start page]] 21 amylalcohol and amylacetate in the making of our lacquers. Returned with 6:15 P.M. Celine out of bed. Tried phonographs till late evening. Dec 11 Have unpleasant cold, feel tired. sore throat & coughing. Dec 12 Cold better. Dictated most of day. Dec 13. Two masons at well (-10◦ C) of coal bin. [[strikethrough]] Dec [[/strikethrough]] Afternoon met [[underlined]] Kirk Brown [[/underlined]] to define scope of Aylsworth patent and my patents. Told him [[underlined]] Aylsworth invention [[/underlined]] [[end page]]