TY  - JOUR
T1  - Extract of a Letter from Professor Langberg of Christiania to Colonel Sabine, Dated June 10th, 1855
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 7
SP  - 434
EP  - 436
PY  - 1854/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1854.0099
M3  - doi:10.1098/rspl.1854.0099
AU  - Langberg, P.
ER  -