TY  - JOUR
T1  - Experiments to Determine the Difference in the Number of Vibrations made by an Invariable Pendulum in the Royal Observatories of Greenwich and Altona. 
JF  - Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London (1800-1843)
VL  - 2
SP  - 403
EP  - 403
PY  - 1815/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1815.0397
M3  - doi:10.1098/rspl.1815.0397
AU  - Sabine, E.
ER  -