§ 1122. General provisions respecting the commission. It is not
necessary, unless the court specially so directs, that the witnesses to
be examined should be named in the commission, or that interrogatories
should be annexed thereto. The commission must be executed and returned,
and the deposition taken must be filed and used, as prescribed by law
for depositions taken without the state for use within the state, except
as otherwise specially prescribed in this article.