TY  - JOUR
T1  - Helium, a Gaseous Constituent of Certain Minerals. Part II--Density
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 59
SP  - 325
EP  - 330
PY  - 1895/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1895.0097
M3  - doi:10.1098/rspl.1895.0097
AU  - Ramsay, W.
ER  -