-409(28) that things have happened according to the ordinary course of nature and ordinary habits of life; (29) that persons acting as copartners have entered into a contract of copartnership; (30) that a man and woman deporting themselves as husband and wife have entered into a lawful contract of marriage; (31) that a child born in lawful wedlock is legitimate; (32) that a thing once proved to exist continues as long as is usual with things of that nature; (33) that the law has been obeyed; (34) that a document or writing more than thirty years old is genuine, when the same has been since generally acted upon as genuine, by persons having an interest in the question, and its custody has been satisfactorily explained; (35) that a printed and published book, purporting to be printed or published by public authority, was so printed or published; (36) that a printed and published book, purporting to contain reports of cases adjudged in the tribunals of the State or country where the book is published, contains correct reports of those cases; (37) that a trustee or other person, whose duty it was to convey real property to a particular person, has actually conveyed to him when that presumption is necessary to perfect the title of such person or his successor in interest; and (38) that there was a good and sufficient consideration for a written contract. Subchapter VII—Particular Cases; Statute of Frauds § 3251. Offer equivalent to tender An offer in writing to pay a particular sum of money, or to deliver a written instrument or specific personal property, is, if not accepted, equivalent to the actual production and tender of the money, instrument, or property. § 3252. Right to receipt for payment or delivery Whoever pays money, or delivers an instrument or property, is entitled to a receipt therefor from the person to whom the payment or delivery is made, and may demand a proper signature to such receipt as a condition of the payment or delivery. § 3253. Ob jections to tender must be specified The person to whom a tender is made shall, at the time, specify any objection he may have to the money, instrmnent, or property, or he is deemed to have waived it. If the objection is to the amount of money, the terms of the instrument, or the amount or kind of property, he shall specify the amount, terms, or kind which he requires, or be precluded from objecting afterwards.