00517     2200181   4500001002100000005001500021035002000036007000300056008004100059245007900100250002500179260005500204300002200259650001000281650001600291650001200307990001600319INLIS00000000000526020230919111955  a0010-0923000026ta230919                g          0 dut    aKoninklijk magnetisch en meteorogisch observatorium te Batavia /cC. Braak  aVerhandelingen No. 5  aBatavia :bJavasche Boekhandel en Drukkerij,c1919  a1-57 p. ;c27 cm. 4aROYAL 4aOBSERVATORY 4aBATAVIA  a00000003790