details. How many times has he not reminded me of the transaction,
insisting that I should make a note of it, so anxious was he that this
incident in his career should not be lost in oblivion! How often has he not
recalled the infinite delicacy of Mill, and his excessive scrupulousness,
which went so far that he wished to give a written acknowledgment of the
repayment of the debt, of which there was no record whatever save in the
conscience of the debtor!

Scarcely two years later Mill died suddenly at Avignon. Grief finally
killed him; for this unexpected death seemed to have been only the ultimate
climax of the secret malady which had so long been undermining him.

It was in the outskirts of Orange that Fabre for the last time met him and
accompanied him upon a botanizing expedition. He was struck by his weakness
and his rapid decline. Mill could hardly drag himself along, and when he
stooped to gather a specimen he had the greatest difficulty in rising. They
were never to meet again.

A few days later--on the 8th May, 1873--Fabre was invited to lunch with the
philosopher. Before going to the little house by the cemetery he halted, as
was his custom, at the Libraire Saint-Just. It was there that he learned,
with amazement, of the tragic and sudden event which set a so unexpected
term to a friendship which was doubtless a little remote, but which was, on
both sides, a singularly lofty and beautiful attachment.

His class-books were now bringing in scarcely anything; their preparation,
moreover, involved an excessive expenditure of time, and gave him a great
deal of trouble; it is impossible to imagine what scrupulous care, what
zeal and self-respect Fabre brought to the execution of the programme which
he had to fulfil.