Journeys
The expeditions, reassembled
Every dated label is a diary entry. Read a collector’s labels in order and the voyage comes back: the islands in sequence, the days at each, the specimens from every stop. 4 journeys so far, 1931 to 1938, 2,676 specimens between them.
3 collectors and expeditions156 days in the field32,505 km between stops1,281 photographed specimens
4 journeys match
Masahiko Takamatsu
31 islands · Dec 1935 – Jun 1936
Masahiko Takamatsu across 31 islands, December 1935 – June 19362,083 specimens · 77 stops · 205 days · 15,209 km
T. Hosokawa
17 islands · Jul – Nov 1933
T. Hosokawa across 17 islands, July – November 1933500 specimens · 50 stops · 137 days · 17,296 km
T. Hosokawa
4 islands · Jun – Aug 1938
T. Hosokawa across 4 islands, June – August 193840 specimens · 12 stops · 52 days
R. Kanehira
6 islands · Jun – Jul 1931
R. Kanehira across 6 islands, June – July 193153 specimens · 2 stops · 8 days
How a journey is found
Every specimen with a full date (year, month and day; a bare “1 January” is treated as a missing day) and a named collector is a diary entry. For each collector the days are read in order, each day given the place most of its labels name. The place where a collector spent more than forty percent of their days, and at least sixty of them, is home: days there are left out.
A gap of more than 21 days between collecting days ends one journey and begins the next. A journey must run five to four hundred days, hold at least forty specimens and touch at least two places. Within it, consecutive days inside the same or a neighbouring tenth-of-a-degree cell (about eleven kilometres) are one stop; the stop’s point is the mean of its labels’ coordinates, or the island’s centre when none carry any.
Companions are collectors whose own labels put them in the same cell on the same days. Staff can name a journey, write about it, feature it or hide it; those words survive every rebuild. Everything else is read off the specimens and rebuilt by harvest.mjs expeditions as the records improve.