19-3-1. Means of testimony enumerated. The testimony of witnesses is taken in three modes:
(1) By affidavit;
(2) By deposition;
(3) By oral examination.Source: CCivP 1877, § 463; CL 1887, § 5277; RCCivP 1903, § 503; RC 1919, § 2750; Supreme Court Rule 501, 1939; SDC 1939 & Supp 1960, § 36.0201.