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TO ALTER. To change. Alterations are made either in the contract itself, or in the instrument which is evidence of it. The contract may at any time be altered with the consent of the parties, and the alteration may be either in writing or not in writing.
     2. It is a general rule that the terms of a contract under seal, cannot be changed by a parol agreement. Cooke, 500; 3 Blackf. R. 353; 4 Bibb. 1. But it has been decided that an alteration of a contract by specialty, made by parol, makes it all parol. 2 Watts, 451; 1 Wash. R. 170; 4 Cowen, 564; 3 Harr. & John. 438; 9 Pick. 298; 1 East, R. 619; but see 3 S.& R. 579.
     3. When the contract is, in writing, but not under seal, it may be varied by parol, and the whole will make but one agreement. 9 Cowen, 115; 5.N. H. Rep. 99; 6 Harr. & John, 38; 18 John. 420; 1 John. Cas. 22; 5 Cowen, 606; Pet. C. C. R. 221; 1 Fairf. 414.
     4. When the contract is evidenced by a specialty, and it is altered by parol, the whole will be considered as a parol agreement. 2 Watt 451; 9 Pick. 298. For alteration of instruments see Erasure; Interlineation. See, generally, 7 Greenl. 76, 121, 394; 15 John. 200; 2 Penna. R. 454.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Nimrat Kaur: Waking up to some tragic news about the passing away of Tom Alter. A one of a kind, grace personified, thorough gentleman.
Alter holds a juris doctor degree from Harvard Law School and a master's degree in business administration from Harvard Business School.
The historian will perhaps be frustrated that Alter often avoids a discussion of historicity of the narrative.
Pages have been ripped out to make room for the added elements, the cover has been altered and so, too, has the title on the spine.
The card can then be cashed out at any of Alter's on-site ATMs, taken to another ATM or spent like cash.
The native rhythm has been altered by artifacts, which are revealed as small pointed deflections on the "tips" of the QRS complexes.
With wheelchairs or other orthopedic devices, the courts indicate that it has to be determined whether waiving the particular student safety regulation would fundamentally alter the sport or place other participants at additional risk.
"The only reason why beer would need to be cold is so that it can be consumed right away," said Alter, who has been a police officer for more than 20 years.
2002) confirmed the ability of CPF to alter the activity of another nuclear transcription factor in cortical neurons, the [Ca.sup.2+]/cAMP response element binding protein (CREB), which is critical for cell survival and differentiation during development and is critical for memory.
Throughout the photographic process, an individual skilled in photography can alter the image.