I.O.U

In common law. A memorandum of debt in use among merchants. It is not a promissory note, as it contains no direct promise to pay. See 4 Car. & P. 324; 1 Man. & G. 46; 1 C. B. 543; 1 Esp. 426; Pars. Bills & Notes. IBI SEMPER DEBET FIERI TR1ATI0 ubi juratores meliorem possunt habere notitiam. A trial should always be had where the jurors can be the best informed.

7 Coke, lb.

IBIDEM (Lat.) In the same book or place; the same subject. Abbreviated ib or ibid. ICTUS (Lat.) In old English law. A stroke or blow from a club or stone; a bruise, contusion, or swelling produced by a blow from a club or stone, as distinguished from "plaga," a wound. Fleta, lib.

1, c. 41, § 3.

ICTUS ORBIS (Lat.) In medical lurisprudence. A maim, a bruise, or swelling; any hurt without cutting the skin. When the skin is cut, the injury is called a "wound." Bracton, lib.

2, tr. 2, cc. 5, 24.

Ictus is often used by medical authors in the sense of percussus. It is applied to the pulsation of the arteries, to any external lesion of the body produced by violence; also to the wound inflicted by a scorpion or venomous reptile. Orbis is used in the sense of circle, circuit, rotundity. It is applied, also, to the eyeballs, oculi dicuntur orbes. Cast. Lex. Med.

ID CERTUM EST QUOD CERTUM REDdi potest

That is certain which may be rendered certain.

1 Bouv. Inst, note 929; 2 Bl. Comm. 143; 4 Kent, Comm. 462; 4 Pick. (Mass.) 179; Broom, Leg. Max. (3d London Ed.) 556.

ID CERTUM EST QUOD CERTUM REDdi potest, sed id magis certum est quod de semetipso est certum. That is certain which can be made certain, but that is more certain which is certain of itself.

9 Coke, 47a.

I ID PERFECTUM EST QUOD EX OMNIbus suis partibus constat. That Is perfect which is complete in all its parts.

9 Coke, 9.

ID POSSUMUS QUOD DE JURE POSSUmus

We are able to do that which we can do lawfully.

Lane, 116.