During my visit to Leyden in April of the present year, I had the pleasure of examining carefully the collection of Rallidae as it had been arranged by the late Professor Schlegel in the year 1865 (cf. Cat. Mus. Pays-Bas, Vol. V, pp. 1—79). The following notes, which form a small commentary on Schlegel’s Catalogue, may be of some use to future workers on the Rallidae.