Of course every purchaser of property should, and usually does make an examination of the records to ascertain whether the seller's title is good. The records may show a good title in the seller, yet there may be many flaws which the records do not indicate. A deed from A, B and C, in the prior chain of title may state that they are the only children of a former owner; there may be other children who have a right. There are many other possible defects in the title undiscoverable from an examination of the records, but which may come to light after the purchaser has taken title. To guard against loss in such contingency, it is customary to stipulate in the contract of sale that the grantor give a deed containing certain covenants and warranties respecting the property.