TY  - JOUR
T1  - Communication from the Secretary of State for India Relative to Pendulum Observations Now in Progress in India in Connexion with the Great Trigonometrical Survey under the Superintendence of Colonel J. T. Walker, R.E., F.R.S
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 19
SP  - 97
EP  - 105
PY  - 1870/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1870.0020
M3  - doi:10.1098/rspl.1870.0020
AU  - Walker, J.
ER  -