1902 742 p., paperbound (original printed covers). Contains bibliographical references of no less than 6.622 nominal species. An uncut copy.
1902 742 p., green publisher’s cloth. Library stamps, some slight wear on joints. Contains bibliographical references of no less than 6.622 nominal species.
1922 119 p., contemporary half calf over marbled boards, original wrappers bound in. Includes descriptions of new species. Spine cover chipped/worn, boards rubbed, joints tender. Stamp on front paste-down.
1924 222 p., In issues. Many contributions on Diptera.