of spirit has been accorded him there, as he knew it
would not be accorded elsewhere. "When a man comes into the atmosphere
of Jena," says Professor Haeckel, "he perforce begins to think--there
is no escape from it. And he is free to let his thoughts carry
him whithersoever they honestly may. My beliefs," he added, "are
substantially the beliefs of my colleagues in science everywhere, as I
know from private conversations; but they, unlike myself, are not free
to speak the full truth as they see it. I myself would not be tolerated
elsewhere, as I am well aware. Had I desired to remain in Berlin, for
example, I must have kept silent. But here in Jena one is free."

And he smiles benignly as he says it. The controversies through which he
has passed and the calumnies of which he has been the target have left
no scars upon this broad, calm spirit.

HAECKEL AS MAN AND TEACHER

It is indeed a delightful experience to meet Professor Haeckel in the
midst of his charming oasis of freedom, his beloved Jena. To reach his
laboratory you walk down a narrow lane, past Schiller's house, and
the garden where Schiller and Goethe used to sit and where now the
new observatory stands. Haeckel's laboratory itself is a simple oblong
building of yellowish brick, standing on a jutting point of land high
above the street-level. Entering it, your eye is first caught by a set
of simple panels in the wall opposite the door bearing six illustrious
names: Aristotle, Linne, Lamarck, Cuvier, Mueller, Darwin--a Greek,
a Swede, two Frenchmen, a German, and an Englishman. Such a list is
significant; it tells of the cosmopolitan spirit that here holds sway.

The ground-floor of the building is occupied by a lecture-room and by
the zoological collection. The latter is a good working-collection, and
purports to be nothing else. Of course it does not for a moment compare
with the collections of the museums in any large city of Europe or
America, nor indeed is it numerically comparable with many private
collections, or collections of lesser colleges in America. Similarly,
when one mounts the stairs and enters the laboratory proper, he finds a
room of no great dimensions and nowise startling in its appointments. It
is admirably lighted, to be sure, and in all respects suitably equipped
for its purpose, but it is by no means so large or so luxurious as the
average college laboratory of America. Indeed, it is not to be mentioned
in the same breath with the