From the mother, by reason of the indisposition of the body, or from some particular part only, and chiefly the womb, as when the woman is weak, and the mother is not active to expel the burden, or from weakness, or disease, or want of spirits; or it may be from strong passion of the mind with which she was once possessed; she may also be too young, and so may have the passage too narrow; or too old, and then, if it be her first child, because her pains are too dry and hard, and cannot be easily dilated, as happens also to them which are too lean; likewise those who are small, short or deformed, as crooked women who have not breath enough to help their pains, and to bear them down, persons that are crooked having sometimes the bones of the passage not well shaped. The colic also hinders labour, by preventing the true pains; and all great and active pains, as when the woman is taken with a great and violent fever, a great flooding, frequent convulsions, bloody flux, or any other great distemper. Also, excrements retained cause great difficulty, and so does a stone in the bladder: or when the bladder is full of urine, without being able to void it, or when the woman is troubled with great and painful piles. It may also be from the passages, when the membranes are thick, the orifice too narrow, and the neck of the womb not sufficiently open, the passages strained and pressed by tumours in the adjacent parts, or when the bones are too firm, and will not open, which very much endangers the mother and the child; or when the passages are not slippery, by reason of the waters having broken too soon, or membranes being too thin. The womb may also be out of order with regard to its bad situation or conformation, having its neck too narrow, hard and callous, which may easily be so naturally, or may come by accident, being many times caused by a tumour, an imposthume, ulcer or superfluous flesh. As to hard labour occasioned by the child, it is when the child happens to stick to a mole, or when it is so weak it cannot break the membranes; or if it be too big all over, or in the head only; or if the natural vessels are twisted about its neck; when the belly is hydropsical; or when it is monstrous, having two heads, or joined to another child, also, when the child is dead or so weak that it can contribute nothing to its birth; likewise when it comes wrong, or there are two or more. And to all these various difficulties there is oftentimes one more, and that is, the ignorance of the midwife, who for want of understanding in her business, hinders nature in her work instead of helping her.