em,
their counterparts, form in the female and are called ovaries. These
ovaries are found attached to an organ called the womb, and this again
is united with the vagina, which leads downwards and outwards between
the labia majora.[B]

[B] For fuller particulars see Guernsey's Obstetrics.

At the end of the _third month_ the weight of the embryo is from three
to four ounces and its length from four to five inches, the eyeballs are
seen through the lids, the pupils of the eyes are discernible, the
forehead, nose and lips can be clearly distinguished. The finger nails
resemble thin membranous plates, the skin shows more firmness, but is
still rosy-hued, thin and transparent. The sex can now be fully
determined.

At the end of the _fourth month_ the product of conception is no longer
called an embryo, but a foetus. The body is from six to eight inches in
length and weighs six or seven ounces. A few little white hairs are seen
scattered over the scalp. The development of the face is still
imperfect. The eyes are now closed by their lids, the nostrils are
well-formed, the mouth is shut in by the lips and the sex is still more
sharply defined. The tongue may be observed far back in the mouth, and
the lower part of the face is rounded off by what a little later will be
a well-formed chin. The movements of the foetus are by this time plainly
felt by the mother, and if born at this time it may live several months.

At the end of the _fifth month_ the body of the foetus is from seven to
nine inches long and weighs from eight to eleven ounces. The skin has a
fairer appearance and more consistence; the eyes can no longer be
distinguished through the lids, owing to the increased thickness of the
latter. The head, heart and kidneys are large and well developed. At the
end of the _sixth month_ the foetus is from eleven to twelve and a half
inches in length, and weighs about sixteen ounces, more or less. The
hair upon the scalp is thicker and longer, the eyes remain closed, and
very delicate hairs may be seen upon the margins of the eye-lids and
upon the eye-brows. The nails are solid, the scrotum small and empty,
the surface of the skin appears wrinkled but the dermis may be
distinguished from the epidermis. The liver is large and red, and the
gall-bladder contains fluid.

At the end of the _seventh month_ the length of the foetus is from
twelve and a half to fourteen inches, its weight is about fifty-five
ounces, and it is bo