When a Mare, Doe, Hind, or the like Animal, cast their Young, or a Woman miscarries of her Child, the Mischance proceeds either through the Irregularities of the Corporeal Motions, or Parts of the Child; or through some Irregularity of the Parts of the Mother; or else of both Mother and Child. If the Irregularities be of the Parts of the Child, those Parts divide from the Mother, through their Irregularity: but, if the Irregularity be in the Parts of the Mother, then the Mother divides in some manner from the Child; and if there be a distemper in both of them, the Child and Mother divide from each other: but, such Mischances are at different times, some sooner, and some later. As for false Conceptions, they are occasioned through the Irregularities of Conception. CHAP. VI. Of the Encrease of Growth, and Strength of Mankind, or such like Creatures. The reason most Animals, especially Human Creatures, are weak whilst they are Infants, and that their Strength and Growth encreases by degrees, is, That a Child hath not so many Parts, as when he is a Youth; nor so many Parts when he is a Youth, as when he is a Man: for, after the Child is parted from the Mother, it is nourished by other Creatures, as the Mother was, and the Child by the Mother; and according as the nourishing Parts be Regular, or Irregular, so is the Child, Youth, or Man, weaker, or stronger; healthful, or diseased; and when the Figurative Motions move (as I may say for expression sake) curiously, the Body is neatly shaped, and is, as we say, beautiful. But this is to be noted, That 'tis not Greatness, or Bulk of Body, makes a Body perfect; for, there are several sizes of every sort, or kind of Creatures; as also, in every particular kind, or sort; and every several size may be as perfect, one, as the other: But, I mean the Number of Parts, according to the proper size. CHAP. VII. Of the several Properties of the several Exterior Shapes of several sorts of Animals. The several Exterior Shapes of Creatures, cause several Properties, as Running, Jumping, Hopping, Leaping, Climbing, Galloping, Trotting, Ambling, Turning, Winding, and Rowling; also Creeping, Crawling, Flying, Soaring or Towring; Swimming, Diving, Digging, Stinging or Piercing; Pressing, Spinning, Weaving, Twisting, Printing, Carving, Breaking, Drawing, Driving, Bearing, Carrying, Holding, Griping or Grasping, Infolding, and Millions of the like. Also, the Exterior Shapes cause Defences, as Horns, Claws, Teeth, Bills, Talons, Finns, _&c._ Likewise, the Exterior Shapes cause Offences, and give Offences: As also, the different sorts of Exterior Shapes, cause different Exterior Perceptions. CHAP. VIII. Of the Dividing and Uniting Parts of a particular Creature. Those Parts (as I have said) that were the First Founders of an Animal, or other sort of Creature, may not be constant Inhabitants: for, though