C. Rumker. Loose sheets of original transit and circle observations (c. 150 ff), 1822-1823 Unit ID: 2 Date: 1822/1823
C. Rumker. Observations and remarks made on a passage from N.S.W. to England (7 ff.), 1830-06-11 (read) Unit ID: 14 Date: 1830-06-11 (read)
C. Rumker. Observations of certain circumpolar stars by means of mural circle. (9 ff.), 1829-01-09 (read) Unit ID: 18 Date: 1829-01-09 (read)
C. Rumker (Parramatta) to W. Pearson, September 1827-September 1827 Unit ID: 17 Date: 1827-09/1827-09
C. Rumker. Three volumes of transit and circle observations (c. 90 ff), 1822-1823 Unit ID: 3 Date: 1822/1823