The Master-key to Public Offices, and Candidate's Complete Instructor: Fully Showing what Places to Seek; what Steps to Take; who are the Patrons; what are the Examinations; the Ages and Qualifications Required; the Salaries, Rules of Promotion, Classification, Hours of Attendance, Prospects, and Prizes in Each Office; Retiring Pensions, Etc. The Whole Forming a Comprehensive Hand-book for All Persons Desirous to Enter Her Majesty's Civil Service