DETAILED TABLE OF CONTENTS.
CHAPTER I.
DROSERA ROTUNDIFOLIA, OR THE COMMON SUN-DEW.
Number of insects captured Description of the leaves and their
appendages or tentacles Preliminary sketch of the action of the
various parts, and of the manner in which insects are captured Duration
of the inflection of the tentacles Nature of the secretion Manner in
which insects are carried to the centre of the leaf Evidence that the
glands have the power of absorption Small size of the roots.
CHAPTER II.
THE MOVEMENTS OF THE TENTACLES FROM THE CONTACT OF SOLID BODIES.
Inflection of the exterior tentacles owing to the glands of the disc
being excited by repeated touches, or by objects left in contact with
them Difference in the action of bodies yielding and not yielding
soluble nitrogenous matter Inflection of the exterior tentacles
directly caused by objects left in contact with their glands Periods of
commencing inflection and of subsequent re-expansion Extreme minuteness
of the particles causing inflection Action under water Inflection of
the exterior tentacles when their glands are excited by repeated
touches Falling drops of water do not cause inflection.
CHAPTER III.
AGGREGATION OF THE PROTOPLASM WITHIN THE CELLS OF THE TENTACLES.
Nature of the contents of the cells before aggregation Various causes
which excite aggregation The process commences within the glands and
travels down the tentacles Description of the aggregated masses and of
their spontaneous movements Currents of protoplasm along the walls of
the cells Action of carbonate of ammonia The granules in the protoplasm
which flows along the walls coalesce with the central masses Minuteness
of the quantity of carbonate of ammonia causing aggregation Action of
other salts of ammonia Of other substances, organic fluids, &c. Of
water Of heat Redissolution of the aggregated masses Proximate causes
of the aggregation of the protoplasm Summary and concluding
remarks Supplementary observations on aggregation in the roots of
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