Horace Gray, United States v. Alger (151 U.S. 362…
“ His express resignation of the lower office, the very day before his appointment to the higher office, and when he must have known of and counted upon the coming appointment, was evidently tendered with no intention of leaving the service, and was but equivalent to the resignation which the law would have implied from his acceptance of the higher office. The fact is therefore immaterial (which might otherwise be significant) that his new appointment was to rank from a date before his resignation of the old one. ”
