on that the
cerebellum was further developed after the cerebrum had ceased
to grow, so that there was not an arrest of the development but
an irregularity. The cerebral hemispheres were asymmetrical, the
frontal lobes, corresponding to the psychical performances in
the case, being relatively pretty large, while the posterior
portion of the third convolution on the left side, the island of
Reil, and the operculum were very small, corresponding to the
inability to learn to speak. The author connects the slight
mobility with the smallness of the parietal and frontal
ascending convolutions.

The other case is that of a girl of six years (E. H.), who came
to the institution in January, 1879, and died in July of the
same year. She could walk about, and she had complete control of
her limbs. She was cheerful, easy to be amused, and greatly
attached to her nurse. She associated with other children, but
could not speak a word. Her hearing was good, her habits bad.
Although she could pick up objects and play with them, it did
not occur to her to feed herself. She could take notice and
observe, and could remember certain persons. Her brain weighed,
two days after death, 20-1/2 ounces, and was, in many respects,
as simple as that of an infant; but, in regard to the
convolutions, it was far superior to the brain of a monkey--was
superior also to that of E. R. The ascending frontal and
parietal convolutions were larger, corresponding to the greater
mobility. The third frontal convolution and the island of Reil
were small on both sides, corresponding to the alalia. The
author is of opinion that the ganglionic cells in this brain
lacked processes, so that the intercentral connections did not
attain development.

A more accurate description of two brains of microcephali is given by
Julius Sander in the "Archiv fuer Psychiatrie und Nerven-Krankheiten" (i,
299-307; Berlin, 1868), accompanied by good plates. One of these cases
is that of which an account is given by Johannes Mueller (in the
"Medicinische Zeitung des Vereins fuer Heilkunde in Preussen," 1836, Nr.
2 und 3).

In the full and detailed treatises concerning microcephali by Karl Vogt
("Archiv fuer Anthropologie," ii, 2, 228) and Von Flesch ("Wuerzburger
Festschrift," ii, 95, 1882) may be found further data in regard to more
recent cases.

Many questions of ph