Quotation from: The Notebooks of Leonardo Da Vinci

Written by: Leonardo da Vinci

413.

A DESCRIPTION OF THE ELM.

The ramification of the elm has the largest branch at the top. The
first and the last but one are smaller, when the main trunk is
straight.

The space between the insertion of one leaf to the rest is half the
extreme length of the leaf or somewhat less, for the leaves are at
an interval which is about the 3rd of the width of the leaf.