SALT BRIDGES AND NEGATIVE VARIATIONS.
A negative variation in Nitella is unable to pass a spot killed by chloroform but can set up a negative variation beyond this spot when a salt bridge is put around it. It can likewise set up a negative variation in a cell of another plant if connected to it by two salt bridges.
Osterhout
W J
WJ
Laboratories of The Rockefeller Institute for Medical Research.
Hill
S E
SE