n
workers given over to decrepitude. Haeckel at sixty-five looks as if he
were good for at least a score of years of further effort. And should he
fulfil the promise of his present rugged-ness, he will do no more than
numbers of his colleagues in German universities have done and are
doing. When one runs over the list of octogenarians, and considers at
the same time the amount of the individual output of the best German
workers, he is led to feel that Professor Haeckel was probably right in
giving up the continuous-day method of labor and reverting to the German
method.

In addition to the original researches that Professor Haeckel has
carried out, to which I have already made some reference, there has,
of course, been all along another large item of time-consumption to be
charged up to his duties as a teacher. These, to be sure, are somewhat
less exacting in the case of a German university professor than they
are in corresponding positions in England or America. Thus, outside the
hours of teaching, Professor Haeckel has all along been able to find
about eight hours a day for personal, original research. When he told
Professor Huxley so in the days of their early friendship, Huxley
exclaimed: "Then you ought to be the happiest man alive. Why, I can find
at most but two hours a day to use for myself."

So much for the difference between German methods of teaching, where the
university professor usually confines his contact with the pupils to an
hour's lecture each day, and the English system, according to which the
lecturer is a teacher in other ways as well. Yet it must be added that
in this regard Professor Haeckel is not an orthodox German, for his
contact with his students is by no means confined to the lecture-hour.
Indeed, if one would see him at his best, he must go, not to the
lecture-hall, but to the laboratory proper during the hours when
Professor Haeckel personally presides there, and brings knowledge and
inspiration to the eager band of young dissectors who gather there. It
will perhaps seem strange to the reader to be told that the hours on
which this occurs are from nine till one o'clock of a day which is
perhaps not devoted to class-room exercises in any other school of
Christendom whatever--namely, the Sabbath. It is interesting to reflect
what would be the comment on such a procedure in London, for example,
where the underground railway trains even must stop running during the
hours of morning service