1.
Meteorological observations during BROMO cruise from Batavia to the Netherlands started at 1851-09-27
2.
Meteorological observations during MAGDALENA cruise from Westereilanden to the Netherlands started at 1851-08-25
Meteorological observations during Prins Veldmaarschalk cruise from Batavia to the Netherlands started at 1852-10-14
Meteorological observations during Van der Palm cruise from Batavia to the Netherlands started at 1849-05-05
Meteorological observations during Van Oldenbarneveld cruise from Banjoewangie to Holland started at 1850-01-26