Comprises: 7 small field observation notebooks, 1907 (with earlier letter inserted, 1903), 1909-1912. 18 handwritten notebooks containing field observations of birds (arranged by family or topic), many with later additions by F.C.R. Jourdain, comprising: '7. Animala, various', c.1904-1913 '10. Halcyones, Striges, Caprimulgi, Cypseli, Pici', c.1903-1914 …