Although the sounds of the heart and movements of the foetus are unequivocal proofs of pregnancy, which may be heard at a very early period, still it must, in some degree, remain uncertain at this time, how far their absence can be looked upon as a proof of its non-existence. Under such circumstances, the examinations require to be conducted with the greatest possible care, and to be repeated at favourable opportunities, until no doubt as to the correctness of their results can any longer exist. The soft cushiony feel of the cervix uteri is a change produced by pregnancy, which, in our opinion, has not received that attention which it deserves; as far as we are able to judge, this condition of the cervix is peculiar to pregnancy, and exists very shortly after conception. We occasionally meet with a soft flaccid state of the os and cervix uteri in certain diseases; but the feel which this communicates to the finger is very different to that above-mentioned, which resembles more the elastic inflated condition of the nipple during pregnancy, than any thing to which we can compare it. _Ballottement._ At the beginning of the seventh month we shall be able to feel the head of the foetus upon examination per vaginam. If we direct our finger against the uterus, midway between the os uteri and symphysis pubis, and suddenly exert a slight degree of pressure, we shall become sensible of having struck against something hard within the cavity of the uterus; upon repeating the experiment immediately, we shall probably not feel it, the foetus having risen in the liquor amnii to the upper parts of the uterus; but if hold our finger still for a few moments, it will, by this time, have again descended, and we shall again feel it; at other times, when the foetus is larger and heavier, the head will rest like a light ball, on the tip of the finger, from which circumstance it has received the name of _ballottement_ by the French authors.