her arms. This awakening of mental activity shows that,
notwithstanding the extremely small quantity of brain-substance,
there exists a certain degree of intellectual development with
advancing years. With the fourth year, in the case of M.,
independent movements began; up to that time she lay, as her
five-year-old brother still lies, immovable in body and limbs,
with the exception of slight bendings and stretchings."

Richard Pott, who (1879) likewise observed this microcephalous subject,
found that she wandered about aimlessly, restlessly, and nimbly, from
corner to corner [as if], groping and seeking; yet objects held before
her were only momentarily fixated, scarcely holding her attention; often
she did not once grasp at them. "The girl goes alone, without tottering
or staggering, but her locomotive movements are absolutely without
motive, having no end or aim, frequently changing their direction.
Notwithstanding her size, the child gives the impression of the most
extreme helplessness." She was fed, but was not indifferent as to food,
seeming to prefer sour to sweet. She would come, indeed, when she was
called, but seemed not to understand the words spoken to her; she spoke
no word herself, but uttered shrill, inarticulate sounds; she felt shame
when she was undressed, hiding her face in her sister's lap. The
expression of her countenance was harmless, changeable, manifesting no
definite psychical processes.

The statements contradictory to those of Kollmann are probably to be
explained by the brevity of the observations.

Virchow ("Correspondenzblatt," S. 135), in his remarks upon this case,
says: "I am convinced that every one who observes the microcephalic
child will find that psychologically it has nothing whatever of the ape.
All the positive faculties and qualities of the ape are wanting here;
there is nothing of the psychology of the ape, but only the psychology
of an imperfectly developed and deficient little child. Every
characteristic is human; every single trait. I had the girl in my room a
few months since, for hours together, and occupied myself with her; I
never observed anything in her that reminds me even remotely of the
psychological conditions of apes. She is a human being, in a low stage
of development, but in no way deviating from the nature of humanity."

From these reports it is plain to be seen that for all mental
development an hereditary physical growth of the cer