The classes of assignment which we have been considering are those in which an interest in a contract is conferred by the voluntary act of one in whom such interest originally vested. There are many forms of transfer of contract rights by the operation of law without regard to the consent of the party to the contract whose right is thus transferred. Examples of such forms of transfer are the transfer of the contract rights of a decedent to his executor or administrator; a transfer of the contract rights of one who has been declared judicially to be incompetent to his guardian, trustee or committee; a transfer of contract rights from a bankrupt to his trustee or assignee in bankruptcy, and the like. While this form of transfer is frequently spoken of as assignment by operation of law, it deals with property rather than contract, and for that reason it will not be discussed in this connection.

9Schoellkopf v. Coatsworth, 166 N. Y. 77. 59 N. E. 710.

10 Manchester, etc., Ry. v. Anderson [1898], 2 Ch. 394.

11Dietz v. Transfer Co., 95 Cal. 92, 30 Pac. 380.

12 Crenshaw-Gary Lumber Co. v. Norton, 111 Miss. 720, L. R. A. 1916E, 1227, 72 So. 140.

13 Purvis v. Shuman, 273 111. 286, L. R. A. 1917A, 121, 112 N.. E. 679.

14 Masury v. Southworth, 9 O. S. 340.

15 Aye v. Philadelphia Co., 193 Pa. St. 451, 74 Am. St. Rep. 696, 44 Atl. 555.