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American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 136
128 AMEKICAN HOKOLOGICAL JOUBNAL. 5 = 1.5153 6== 2.1689 7 = 2.9314 8= 3.7927 9= 4.7623 10= 5.8187 11 = 6.9600 12 = 8.1791 13= 9.4663 14 = 10.8156 15= 12.2160 Draw parallels from the points measuredoff, as indicated in Fig. 2, join the points oftheir intersection and the curves are com-plete. The…Clocks and watches
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