TY  - JOUR
T1  - On Variation and Adaptation in Bacteria, Illustrated by Observations upon Streptococci, with Special Reference to the Value of Fermentation Tests as Applied to these Organisms
JF  - Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character (1905-1934)
VL  - 83
IS  - 567
SP  - 541
EP  - 558
PY  - 1911/05/31/
UR  - http://dx.doi.org/10.1098/rspb.1911.0037
M3  - doi:10.1098/rspb.1911.0037
AU  - Walker, E.
ER  -