340
XXII
HERMANN VON HELMHOLTZ
work. Here example is of more value than precept; a few
occasional hints can point out the path better than formal and
well-arranged lectures. The mere presence of the marvellous
investigator helps the pupil to form a just estimate of his own
efforts and of those of his fellow-students, and enables him to
see things sub specie æterni instead of from his own narrow
point of view. Every one who has had the good fortune to work
even for a brief period under Helmholtz's guidance feels that
in this sense he is above all things his pupil, and remembers
with gratitude the consideration, the patience, and the good-
will shown to him. Of the many pupils now scattered over
the earth there is not one who will not to-day think of his
master with love as well as admiration, and with the hope
that he may yet see many years of useful work and of happy
leisure.
Printed by R. & R. CLARK, LIMITED, Edinburgh.