Field Note Book Crocker Land Expedition 1913-1915 No. 53 Seismograph, 1916-1917
Page 54
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Transcription
"Black may 17 in early hot mud work. till 9:20 am not working. I finally put a drop of oil on the rod which holds up the small plunger to the two small coils then by working it back and forth with the point of a knife it set going all right off at 7:32 am working since all right. may 18 on at 7:34 am off at 7:42 working well no shock may 19 on at 7:44 am off at 7:29 working well no shock may 20 on at 7:30 am off at 7:46 am working well no shock may 21 on 7:47 am off at 7:33 am working well no shock