(113 & 114

Nitric acid. The following experiment, though not relating to a salt, may here be here given. One m drop of nitric acid was added to an ounce of water, so that it was rendered barely acid….. to the taste. Half-minim drop of the mixture was placed on the disc of four leaves. After 24° two of them have had their marginal tentacle inflected; two remained uninflected. A second dose was then given to the two latter leaves, & they were then sensibly affected, but they afterwards appeared injured.

Two leaves were also immersed in the same mixture

(114

in order to see if segregation was each quickly induced; but no marked change could be perceived

Aggregation

After 1°, I then placed one of the leaves when Being afterwards Being then placed for some time in a solution of each three grains of carbonate of ammonia to the ounce strongly proved segregation soon ensued.)