Assignee by modern practice may sue, 1836.

Assignment authorizes use of assignor's name, sec 837.

Assignability distinguished from negotiability, sec 838.

No particular form is necessary, sec 839.

Debtor's assent constitutes contractual relation, sec 840.

Lex fori determines whether assignee can sue in his own name, sec 841.

Assignment subject to equities between assignor and debtor, sec S42.

Equities to be determined by the law to which the debt is subject, sec 843.

Set-off must be due at time of assignment, sec 844.

Notice to debtor of assignment necessary to protect assignee, sec 845.

Parties may contract to assign free from equities, sec 846.

So as to orders for delivery of goods, sec 847.

To a suit by assignee it is a defence that the assignor had first to perform duties exclusively personal, sec 848.