History of Phytopathology from the Ottoman Empire to the Republic with its Global and Local DimensionsOkan Ceylan, Nejla DoğanDOI :10.26650/oba.1559048Research ArticleenP. 1-15The Efficiency of Health Services in the Provinces of the Ottoman State: The Year 1897Şahin Yeşilyurt, Abdullah TirgilDOI :10.26650/oba.1454701Research ArticleenP. 16-28An Important Class in the Ottoman Communication Organization and Alay-ı Hümayun: PeyklerMetin MenekşeDOI :10.26650/oba.1567346Research ArticletrP. 29-67Highway Construction and Repair Activities on the Anatolian Right Branch Route in the Period 1850-1909 and Their Effects on the Economic StructureVeli Sırım, Ahmet AkyolDOI :10.26650/oba.1441891Research ArticletrP. 68-83Animal Culling as a Method of Agricultural Control from Ottoman Empire to Republic of Türkiye (1850-1938): Birds, Field Mice and Wild BoarsFatma EmekDOI :10.26650/oba.1545924Research ArticletrP. 84-106A Reflexive Perspective on the Westernization Process of the Ottoman Empire: Mehmed Emin Efendi and his Opposition to Technique [Technology] Reflected in his work titled Risāla-yi İrshādiyyaEyüp ÖztürkDOI :10.26650/oba.1582033Research ArticletrP. 107-130Brief Notes on Sultan Abdulhamid II’s Photograph Albums Representing an Era and the Anatomy-Related Photographs in Those AlbumsAlpen OrtugDOI :10.26650/oba.1485485EditorialtrP. 131-137A Study on Agricultural Education in Turkey in the Republican EraBarışcan ErsözDOI :10.26650/oba.1598027Book ReviewtrP. 138-144Review of “Madmen ve Madness in the Early Modern Ottoman Empire” by Rüya KılıçAbdullah Sami SümerDOI :10.26650/oba.1542109Book ReviewtrP. 145-148From Ottoman Light to Republic Energy: Electricity in IstanbulTuğba YılmazDOI :10.26650/oba.1590968Book ReviewtrP. 149-155E-Correspondence with Professor Atilla BirAyşe Feza GünergunDOI :10.26650/oba.1605913ObituarytrP. 156-188