conversely, such a pulse is said to be, and is of unequal velocity. But if, after being interrupted by an interval of rest, it again appear quicker, it is called the _goat-leap_ or _dorcadissans_, the term being derived from the animal _dorcas_, which, in jumping aloft, stops in the air, and then, unexpectedly, takes another and a swifter spring than the former. But if after the diastole it recur, and before a complete systole take place, strike the finger a second time, such a pulse is called a _reverberating_ one, or _dicrotos_, from its beating twice. You may see such a thing take place upon a stithy, when a hammer, swung by the hand, first strikes the stithy, and afterwards, recoiling from the reaction of the stithy, strikes of itself a second or third time. And not only may an inequality in the time of motion take place as to one pulsation in one part of an artery, but also in regard to the strength of the power; not so, however, in regard to the extent of dilatation (for it is impossible that the same pulse in the same place should be great and small at the same time), nor in regard to the other kinds of pulses. But in different places different parts of an artery may exhibit a double inequality in one pulsation. For the motion may continue constant, and be swifter at one finger and slower at another; or it may intermit, and one finger may perceive it, and another not. And also, in regard to the extent of the diastole, the same inequality becomes apparent in different places. Of this kind are the myuri, diminishing once and again at one pulsation; for, if at the inner finger the pulse should be great and swelled up, but under the external at the thumb of the patient it appear smaller, such a pulse is called myurus, from its resemblance to the tail of a mouse; or meiurus, from its being diminished like a tail. But if the pulse appear great, and swelled under the middle finger, but smaller on each side, Archigenes called this impulse _innuens et circumnuens_, i.e. _the declining, and the declining on both hands_, wishing to mark the smallness of the diastole, with the declination, as it were, of the two extremities; for these parts do not appear as if they were cut short, but as if they were bent in, and a little contracted on each side, and hence the pulse is curtailed (myurus) on both sides.