the full and enormous development of species of Caladia and in the species
of Pothos which form such impenetrable mazes of interlooping stems.

In conclusion, allow me to remark that the results of my investigation, of
which but a succinct account has been given here, negative certain
derivations, which have been believed in, though they have never been
proved; such as that of the form I have last discussed from the Assyrian
palmetta, or from a cypress bent down by the wind. To say the least the
laws of formation here laid down have a more intimate connection with the
forms as they have come down to us, and give us a better handle for future
use and development. The object of the investigation was, in general words,
to prepare for an explanation of the questions raised; and even if the
results had turned out other than they have, it would have sufficed me to
have given an impulse to labors which will testify to the truth of the dead
master's words:

"Was Du ererbt von deinen Vätern hast,
Erwirb es, um es zu besitzen."

* * * * *




STEPS TOWARD A KINETIC THEORY OF MATTER.

[Footnote: Meeting of the British Association, Montreal. 1884. Section A.
Mathematical and Physical science. Opening Address by Prof. Sir William
Thomson, M.A., LL.D., D.C.L., F.R.SS.L. and E., F.R.A.S., President of the
Section.]