The rule that a party litigant shall have the right to confront and cross-examine the witnesses against him, applies with equal force to depositions. And it is a well-established principle that the deposition of no witness shall be read in evidence until it appears that there has been a reasonable opportunity afforded the opposite party to appear and cross-examine.

A reasonable opportunity for cross-examination involves two essential elements: (1) Proper notice to the adversary, specifying the time and place of taking the deposition with certainty; (2) a sufficient length of time intervening between the giving of the notice and the taking of the deposition for the opposite side to prepare for the examination and to arrive at the place in the notice designated. These matters are generally regulated by statute, or by rules of court, in the various states.