delivered the opinion.
There are numerous assignments of error, but they may all be grouped under three or four heads.
It is a settled rule of law that where a security reserved in a building contract for the benefit of the sureties on the builder’s bond is lessened, impaired, or destroyed by a premature payment to the, contractors, the sureties will be released and discharged to the extent at least of the amount so paid: Cochran v. Baker,
It is an elementary rule of law that a surety can insist by his contract that he will not be bound except upon his own terms, and therefore, any alterations or additions in a building contract that materially change, vary, or increase the risk assumed by the sureties will release them from liability unless made by their consent, and there are authorities holding that where the contract provides that before the alterations or additions are made the value thereof shall be agreed upon in writing by the owner and the contractor that alterations or changes made by verbal agreement release the sureties: Killoren v. Meehan, 55 Mo. App. 427; United States v. Freel,
This, we think, covers substantially all the questions raised on this appeal, and there being no error in the record, the judgment is affirmed. Affirmed.
