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I.‐Notes on Embernagra platensis and it8 Allies, with the Description of a new igpecies

Published in Ibis, in 1918, in volume 6, issue 1, pages 1-10

II.–ltidex‐List of the Coloured Plates of Birds in The Ibis' 1859 t o 1917

Published in Ibis, in 1918, in volume 6, issue 1, pages 10-51

111.‐Notes on the Nidiëcation of some Indian FalconidrP.111. The Genera Ictinaetus and Microhieras

Published in Ibis, in 1918, in volume 6, issue 1, pages 51-68

IV.‐Erythrism in Bids' Eggs: an Address red at tlie Third Oolopical Dinner on 26 September, 1917

Published in Ibis, in 1918, in volume 6, issue 1, pages 68-75

V.‐On Birds recently collected in Siam. Part I. Phasiaiiidz‐Eurylemidae

Published in Ibis, in 1918, in volume 6, issue 1, pages 76-114

VI.‐The Platycercin.e Parrots of Australia: a Sludy in Cvlour‐chmge

Published in Ibis, in 1918, in volume 6, issue 1, pages 115-127

VII.— Rejections by Birds of Eggs unlike their own: with Remarks on some of the Cuckoo Problems

Published in Ibis, in 1918, in volume 6, issue 1, pages 127-154

VIII.— Obituary

Published in Ibis, in 1918, in volume 6, issue 1, pages 154-158

IX.— Notices of recent Ornithological Publications

Published in Ibis, in 1918, in volume 6, issue 1, pages 158-172

X.— Letters, Extracts, and Notes

Published in Ibis, in 1918, in volume 6, issue 1, pages 172-188

XII.— Some Additions and Corrections to the B. O. U. List of British Birds. By the Committee appointed to draw up the List. †

Published in Ibis, in 1918, in volume 6, issue 2, pages 234-243

XIII.— A Note on the Structure of the Feather

Published in Ibis, in 1918, in volume 6, issue 2, pages 243-247

XIV.— The Birds of the Isle of May: A Migration Study

Published in Ibis, in 1918, in volume 6, issue 2, pages 247-287

XV.— Notes on some Birds of the Bessarabian Steppe

Published in Ibis, in 1918, in volume 6, issue 2, pages 288-291

XVI.— Further Notes on the Birds of Macedonia

Published in Ibis, in 1918, in volume 6, issue 2, pages 292-300

XVII.— Obituary

Published in Ibis, in 1918, in volume 6, issue 2, pages 301-308

XVIII.— Notices of recent Ornithological Publications

Published in Ibis, in 1918, in volume 6, issue 2, pages 308-333

XIX.— Letters, Extracts, and Notes

Published in Ibis, in 1918, in volume 6, issue 2, pages 334-342

Erratum

Published in Ibis, in 1918, in volume 6, issue 2, pages 342

XX.— Remarks on the Hawks of the Genus Micrastur

Published in Ibis, in 1918, in volume 6, issue 3, pages 343-347

XXI.— Ornithological and Oological Notes from the River Somme valley at its Mouth and near Peronne

Published in Ibis, in 1918, in volume 6, issue 3, pages 348-362

XXII.— Further Ornithological Notes from the Neighbourhood of Cape San Antonio, Province of Buenos Ayres. Part I. Passeres

Published in Ibis, in 1918, in volume 6, issue 3, pages 363-415

XXIII.— A List of the Birds of the Anglo‐Egyptian Sudan, based on the Collections of Mr. A. L. Butler, Mr. A. Chapman and Capt. H. Lynes, R.N., and Major Cuthbert Christy, R.A.M.C. (T.F.). Part I. Corvidæ—Fringillidæ

Published in Ibis, in 1918, in volume 6, issue 3, pages 416-421

XXIV.— Further Notes on Birds observed at Alix, Buffalo Lake, and Red Deer in the Province of Alberta, Canada, in 1915 and 1916

Published in Ibis, in 1918, in volume 6, issue 3, pages 477-496

XXV.— Obituary

Published in Ibis, in 1918, in volume 6, issue 3, pages 496-498

XXVI.— Notices of recent Ornithological Publications

Published in Ibis, in 1918, in volume 6, issue 3, pages 499-517

XXVII.— Letters, Extracts, and Notes

Published in Ibis, in 1918, in volume 6, issue 3, pages 518-528

The Reversed Under Wing‐Coverts of Birds and their. Modifications, as exemplified in the Birds of West Africa

Published in Ibis, in 1918, in volume 6, issue 4, pages 529-583

Notes on recently described Races of Siamese and Malayan Birds, with a Description of one new Race

Published in Ibis, in 1918, in volume 6, issue 4, pages 583-592

A reply to Messrs. Robinson and Kloss, with some further critical remarks

Published in Ibis, in 1918, in volume 6, issue 4, pages 593-597

Notes upon European Birds met with during a short visit to South Africa

Published in Ibis, in 1918, in volume 6, issue 4, pages 598-602

A List of the Birds of the Anglo‐Egyptian Sudan, based on the Collections of Mr. A. L. Butler, Mr. A. Chapman and Capt. H. Lynes, R.N., and Major Cuthbert Christy, R.A.M.C . ( T.F .). Part II*. Alaudidæ—Hirundinidæ

Published in Ibis, in 1918, in volume 6, issue 4, pages 602-721

Obituary

Published in Ibis, in 1918, in volume 6, issue 4, pages 721-724

Notices of recent Orinthological Publications

Published in Ibis, in 1918, in volume 6, issue 4, pages 725-737

Letters, Extracts, and Notes

Published in Ibis, in 1918, in volume 6, issue 4, pages 737-748