What is "solutions"

Usage examples of "solutions".

These cases of the simultaneous darkening or blackening of the glands from the action of weak solutions are important, as they show that all the glands absorbed the carbonate within the same time, which fact indeed there was not the least reason to doubt.

We shall hereafter see that solutions of these substances, when placed on the discs of leaves, do not incite inflection.

We shall hereafter see what excessively small doses of certain organic fluids and saline solutions cause strongly marked inflection.

In this latter case the tentacles seem paralysed, as likewise follows from the action of too strong solutions of certain salts, and by too great heat, whilst weaker solutions of the same salts and a more gentle heat cause movement.

We shall see in the eighth chapter that solutions of several salts of soda of half the above strength cause inflection, but do not injure the leaves.

Several other leaves were immersed for some hours in denser solutions of sugar, gum, and starch, and they had the contents of their cells greatly aggregated.

We have seen that leaves immersed for some hours in dense solutions of sugar, gum, and starch, have the contents of their cells greatly aggregated, and are rendered more or less flaccid, with the tentacles irregularly contorted.

Acid of this greater strength was used as the solutions of the alkalies were stronger.

In fact all the many trials with solutions which were so weak as to produce no effect lead to the same result that water is inefficient.

Although in all the more important experiments the difference between the leaves simultaneously immersed in water and in the several solutions will be described, nevertheless it may be well here to give a summary of the effects of water.

Leaves to the number of 141 were immersed in water at the same time with those in the solutions, and their state recorded at short intervals of time.

Besides the differences just indicated between the leaves immersed in water and in weak solutions of ammonia, the tentacles of the latter are in most cases much more closely inflected.

Hence there is sometimes a much greater difference between the leaves in water and in the weak solutions, after from 8 hrs.

With respect to the period of the reexpansion of the leaves, when left immersed either in water or in the weak solutions, nothing could be more variable.

In solutions which are not extremely weak, they never reexpand within nearly so short a period as six or eight hours.