This section is from the book "The Law Of Quasi Contracts", by Frederic Campbell Woodward. Also available from Amazon: The Law of Quasi Contracts.
Sec. 191. In general.
Sec. 192. (I) Dutiful intervention.
Sec. 193. (1) The discharge of another's obligation.
Sec. 194. (a) Actual performance a matter of public concern.
Sec. 195. (6) Default of the obligor.
Sec. 196. (c) The plaintiff an appropriate intervenor.
Sec. 197. (2) The preservation of life or property.
Sec. 198. (II) The receipt of benefit by defendant.
Sec. 199. (III) Retention of benefit inequitable: Gratuitous intervention.
Sec. 200. (IV) Sundry instances of the obligation.
Sec. 201. (1) Preservation of fife : Services in emergency.
Sec. 202. (2) Necessaries furnished infant or insane person.
Sec. 203. (3) Necessaries furnished wife or children.
Sec. 204. (4) Necessaries furnished pauper.
Sec. 205. (5) Burial of the dead.
Sec. 206. (6) Preservation of property: Maritime salvage.
Sec. 207. Same : Salvage at the common law.
Sec. 208. (7) Repairs by a co-tenant.
Sec. 209. (8) Performance of another's contractual duty.
Sec. 210. (9) Performance of another's statutory duty to repair roads.