Civil Code § (1199.) Section Eleven Hundred and Ninety-nine. 
The evidence taken under the preceding section must satisfactorily prove to the officer the following facts:
   One--The existence of one or more of the conditions mentioned therein; and,
   Two--That the witness testifying knew the person whose name purports to be subscribed to the instrument as a party, and is well acquainted with his signature, and that it is genuine; and,
   Three--That the witness testifying personally knew the person who subscribed the instrument as a witness, and is well acquainted with his signature, and that it is genuine; and,
   Four--The place of residence of the witness.