- unitid
-
{"value"=>"172446", "type"=>"local_mss"}
{"value"=>"8.21", "type"=>"local_call"}
- unitdate
-
{"value"=>"1904 May 7-1907 Oct", "type"=>"inclusive", "normal"=>"1904-05-07/1907-10-31"}
- unittitle
-
{"value"=>"Volume 21 \"M\""}
- scopecontent
-
{"value"=>"<p>Java and Sumatra trip (May 7-Nov 7 '04); Beckett's Leadville work (Nov 8 '04-Jan 16 '05); Calif. and Oregon mining trip (Feb 9-Mar 31 '05); Butte-Boise R.R. survey (Aug 1-Dec 15 '05); Michigan Ry. examination (Jan 24-Mar 15 '06); Happy Camp placers (Apr 13-Oct 1 '07).</p>"}
- container
-
{"type"=>"box", "value"=>"8"}
- date_start
-
1904-05-07
- keydate
-
1904-05-07
- date_end
-
1907-10-31
- date_inclusive_start
-
1904
- date_inclusive_end
-
1907