udinal fissure.
The fissure did not begin till beyond the crown of the head, in the
region of the occiput. The anterior half of the cerebrum consequently
lacked the division into lateral hemispheres. It had few convolutions
also, and the smoothness of its surface was at once obvious. The _corpus
callosum_ and the _fornix_ were undeveloped. "The gray cortical layer
attained in general only about a third of the normal thickness, and was
especially weakly represented in the frontal region." The cerebellum not
being stunted, seemed, by the side of the greatly shrunken cerebrum,
surprisingly large.

In this case the microcephalous of four years behaves, as far as the
development of will is concerned, like the normal boy of four months.
The latter is, in fact, superior to him in _seizing_, while the former
in no way manifests any advantage in a psychical point of view.

Two cases of microcephaly have been described by Fletcher Beach (in the
"Transactions of the International Medical Congress," London, 1881, iii,
615-626).

E. R. was, in May, 1875, received into his institution at the
age of eleven years. She had at the time of her birth a small
head, and had at no time manifested much intelligence. She could
not stand or walk, but was able to move her arms and legs. Her
sight and hearing were normal. She was quiet and obedient, and
sat most of the time in her chair. She paid no attention to her
bodily needs. She could not speak and had to be fed with a
spoon. After six months she became a little more intelligent,
made an attempt to speak, and muttered something indistinctly.
She would stretch out her hand when told to give it, and she
recognized with a smile her nurse and the physician. Some four
months later she would grind her teeth when in a pleasant mood,
and would act as if she were shy when spoken to, holding her
hand before her eyes. She was fond of her nurse. Thus there was
capacity of observation, there were attention, memory,
affection, and some power of voluntary movement. She died in
January, 1876. Her brain weighed, two days after her death,
seven ounces. It is minutely described by the author--but after
it had been preserved in alcohol for six years, and it then
weighed only two ounces. The author found a number of
convolutions not so far developed as in the foetus of six
months, according to Gratiolet, and he is of opini