ORNITHOLOGY -- OORT, E.D. v. Ornithologia Neerlandica. De vogels van Nederland. (Plates only). 's-Grav., 1922-39. Collection of all 407 cold. collotype full-p. plates after drawings by M.A. Koekkoek, 1-402 (incl. 149A, 189A-B, 240A, 388A). The plates are loose and the numb. are not printed, but written in pencil. Stored in 3 h. mor. boxes w. raised bands & dec. gilt backs. -- Added: 6 plates ('proofs'), 4 signed in pencil by M.A. Koekkoek. - Also added: Letter by E.D. v. Oort to publisher Nijhoff.