- No letter to a departmental superior should take the form of an endorsement, except when a particular paper has been called for and is being forwarded.(D. P I.'s memo. no. 3092-3104, dated the 17 the March, 1913.)Note. - As a corollary to this rule all reports should be self-contained, i.e., a report should not consist merely of an enclosure and comments thereon but should give in itself a complete account of the matter on which a report has been called for.
