Conditions subsequent divest title, but not in favor of strangers, sec 608.

Burden is on party setting up devolu tion of property by conditions subsequent, sec 609.

Contract may give right to rescind on breach of warranty, sec 610.

On contracts of "sale or return " title vests, sec 611.

Right to determine contract of service dependent upon concrete case, sec 612.

Indentures of apprenticeship are mutually dependent, sec 613.

Deeds of separation between husband and wife are revoked on renewed cohabitation, sec 614.

Forfeitures may be waived, sec 615.

On happening of condition subsequent title reverts, sec 616. Defeasible title passes to vendee, sec