TY  - JOUR
T1  - Observations with the Horizontal and Dipping Needles, Made during a Voyage from England to New South Wales. 
JF  - Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London (1800-1843)
VL  - 3
SP  - 297
EP  - 297
PY  - 1830/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1830.0175
M3  - doi:10.1098/rspl.1830.0175
AU  - Dunlop, J.
ER  -