PAYİTAHT (İSTANBUL) ASKERİ İDADİSİ'NDE ÖĞRENCİLER VE METROPOLDEKİ EĞİTİM STANDARDI (18381915) (PUPILS IN THE MILITARY HIGHH SCHOOL OF THE THRONE (İSTANBUL) AND THE LEVEL OF THE EDUCATION IN METROPOLIS (1838-1915)) -Mehmet Yavuz ERLER | NEAR EAST HISTORICAL REVIEW