full flower, and thanked Heaven
that such a moment of divine joy was his.

Muller was a Jena man, too, and he gave Haeckel letters to the bigwigs.
The wise men of Jena discovered that there was merit in Haeckel's
discoveries.

Original investigators are rare--most of us write about the men who have
done things, or else we tell about what they have done, and so we reach
greatness by hitching our wagon to a star. For the essay on Rhizopods,
Haeckel was made Professor Extraordinary of the University of Jena. This
was in Eighteen Hundred Sixty-two; Haeckel was then twenty-eight years
old; there he is today, after a service of forty-nine years.

* * * * *

Haeckel is married, with a big brood of children and grandchildren about
him. Some of his own children and the grandchildren are about the same
age, for Haeckel has two broods, having had two wives, both of whom
sympathized with the Teddine philosophy.

With the whole household, including servants, the great scientist is on
terms of absolute good camaraderie. The youngsters ride on his back; the
older girls decorate him with garlands; the boys work with him in the
garden, or together they tramp the fields and climb the hills.

But when it comes to study he goes to his own room in the Zoology
Building, enters in and locks the door. When he travels he travels
alone, without companion or secretary. Travel to him means intense work;
and intense work means to him intense pleasure. Solitude seems necessary
to close, consecutive thinking; and in the solitude of travel, through
jungle, forest, crowded city, or across wide oceans, Haeckel finds his
true and best self. Then it is that he puts his soul in touch with the
Universal and realizes most fully Goethe's oft-repeated dictum, "All is
one." And, indeed, to Goethe must be given the credit of preparing the
mind of Haeckel for Darwinism.

In his book, "The Freedom and Science of Teaching," Haeckel applies the
poetic monistic ideas of Goethe to biology and then to sociology. "All
is one." And this oneness that everywhere exists is simply a
differentiation of the original single cell.

The evolution of the cell mirrors the evolution of the species: the
evolution of the individual mirrors the evolution of the race.

This law, expressed by Goethe, is the controlling shibboleth in all
Haeckel's philosophy.

In embryology he has proved it to the satisfaction of the scientific
world. When he app