Field Note Book Crocker Land Expedition 1913-1915 No. 53 Seismograph, 1916-1917
Page 13
Image from the Biodiversity Heritage Library. Contributed by American Museum of Natural History Library. | www.biodiversitylibrary.org
Transcription
9 spring an order to get force enough to hold the needle arm thrust pins in place against the connecting arms. also needed up the governor a little. [Captain at my request prepared two long legs on wh to hang papers during changing operation - Time reduced from 4 1/2 min to 1 1/2 min, + convenience increased] 5 Nov. Off at 10:14:30 = On at 10:16:05 Temp 90 min 8° No record. Time marks missing from 11 to 11:20 and one, two or three missing several times afterward during 24 hrs - Marking O.K. this morning. Time marks are almost exactly 1 cm apart, twenty of them lacking only 1 mm of being 20 cm apart. 6 Nov. Off at 10:23:30 Temp. 3° min 1° Time marking considerably interrupted and not very satisfactory - No record of shocks. On at 10:25:30 a.m. 7 Nov. Off at 10:04 a.m. Temp. 10.5° min 5° All hours well marked - Most of minutes dits but some not at all. No record On at 10:08 after adjusting needle.