The application of a " person interested " for revocation
of the letters should be made by a petition which " must
set forth the facts aud circumstances " showing the alleged
failure ; and " upon proof, by affidavit or oral testimony,
satisfactory to the surrogate, of the truth of the allegations
contained in the petition, a citation must be issued accord-
ing to the prayer thereof." (§ 2686.) Although the word
" affidavit " includes " a verified petition or answer in a
special proceeding" (§ 3343 sub. 11), it has been held that
the petition must be supplemented by other proof (Moor-
house V. Hutchinson, 2 Dem. 429) ; but, if this be neces-
sary, the requirement will be satisfied by the affidavit or
testimony of the clerk that the bond has not been filed.
Whether a reasonable time has elapsed seems to be a matter
entirely within the discretion of the surrogate, and not a fact
to be alleged or proven.
The citation should be served on the executor or adminis-
trator, as prescribed by sections 2520 and 2521 unless it
" cannot be personally served upon him, by reason of his
having absconded or concealed himself ", in which event his



252 EXECUTION OF DECREE. [Ch. X, § 151

letters may be revoked without even the issuing of a citation.
