Field Note Book Crocker Land Expedition 1913-1915 No. 53 Seismograph, 1916-1917
Page 61
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Transcription
"north Greenland" june 22 1917 off at 7 30 on at 7 41 no shock there is a little improvement in the marking of the hour by the right hand marker june 23 off at 7.36 on at 7.47 no shock the right hand is working but not so perfect as the left one (going it) the left one goes like this _1_1_ while the right one goes _0_0_0_ june 24 off at 7.26 am or at 7.28 am no shock working well but the right hand is not quite so energetic as the left one though quite readable.