TY  - JOUR
T1  - On the Existence of Phosphoric Acid in Rocks of Igneous Origin
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 134
SP  - 53
EP  - 56
PY  - 1844/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1844.0004
M3  - doi:10.1098/rstl.1844.0004
AU  - Fownes, G.
ER  -