strongly inflected.
Sodium, Sulphate of. Half-minims of a solution of one part to 437 of
water were placed on the discs of six leaves. After 5 hrs. 30 m. the
tentacles of three of them, (with the blade of one) were considerably;
and those of the other three slightly, inflected. After 21 hrs. the
inflection had a little decreased, [page 177] and in 45 hrs. the leaves
were fully expanded, appearing quite healthy.
Three leaves were immersed, each in thirty minims of a solution of one
part of the sulphate to 875 of water; after 1 hr. 30 m. there was some
inflection, which increased so much that in 8 hrs. 10 m. all the
tentacles and the blades of all three leaves were closely inflected.
Sodium, Phosphate of. Half-minims of a solution of one part to 437 of
water were placed on the discs of six leaves. The solution acted with
extraordinary rapidity, for in 8 m. the outer tentacles on several of
the leaves were much incurved. After 6 hrs. the tentacles of all six
leaves, and the blades of two, were closely inflected. This state of
things continued for 24 hrs., excepting that the blade of a third leaf
became incurved. After 48 hrs. all the leaves re-expanded. It is clear
that 1/960 of a grain of phosphate of soda has great power in causing
inflection.
Sodium, Citrate of. Half-minims of a solution of one part to 437 of
water were placed on the discs of six leaves, but these were not
observed until 22 hrs. had elapsed. The sub-marginal tentacles of five
of them, and the blades of four, were then found inflected; but the
outer rows of tentacles were not affected. One leaf, which appeared
older than the others, was very little affected in any way. After 46
hrs. four of the leaves were almost re-expanded, including their
blades. Three leaves were also immersed, each in thirty minims of a
solution of one part of the citrate to 875 of water; they were much
acted on in 25 m.; and after 6 hrs. 35 m. almost all the tentacles,
including those of the outer rows, were inflected, but not the blades.
Sodium, Oxalate of. Half-minims of a solution of one part to 437 of
water were placed on the discs of seven leaves; after 5 hrs. 30 m. the
tentacles of all, and the blades of most of them, were much affected.
In 22 hrs., besides the inflection of the tentacles, the blades of all
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