抄録
When E. coli is kept in an incubator at 37°C, the initial shiny wet ap pearance of its surface drys up to come to dull white surface and finally turns to a semi-transparent horny mass. This phenomenon seems to encounter very often, but the clearing is not rather cogent, because the light scattering can always be done on the surfaces of every cell in either case that cells disperse in water or exist as a mass of dried bacterial cells like flour. In the matter of the fact, bacterial spore dried powdery after the same treatment. The first paper of this subjecti; reported that the death rate, by similar dry ing of E . coli, was estimated as 325' . but on the contrary, bacterial spore was generally informed to be never affected the life by drying under such physio logical temperature. Now it is suspected that the bacterial cell of E. coli might undergo some unknown substancial damage while clearing.
