TY  - JOUR
T1  - On a Tendency Observed in Sun-Spots to Change Alternately from the One Solar Hemisphere to the Other
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 21
SP  - 399
EP  - 402
PY  - 1872/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1872.0081
M3  - doi:10.1098/rspl.1872.0081
AU  - Rue, W.
AU  - Stewart, B.
AU  - Loewy, B.
ER  -