Note 141 — Chapter VI · THE PHYSIOLOGICAL THEORY OF FERMENTATION. (continued 2)
Frank Faulkner translation
The naturalist Cohn, of Breslau, who published an excellent work on bacteria in 1872, described, after Mayer, the composition of a liquid peculiarly adapted to the propagation of these organisms, which it would be well to compare for its utility in studies of this kind with our solution of lactate and phosphates. The following is Cohn’s formula:—
Distilled water 20 c.c. (0·7 fl. oz.)
Phosphate of potassium 0·1 gramme (1·5 grains).
Sulphate of magnesium 0·1 gramme (1·5 grains).
Tribasic phosphate of lime 0·01 gramme (0·15 grain).
Tartrate of ammonia 0·2 gramme (3 grains).
This liquid, the author says, has a feeble acid reaction and forms a perfectly clear solution.