IV INTKODUCTION. 



Vireo roraimce, p. 393 ; Pacliysylvia thoracicus ahariensis, p. 395 

 Notiocorys ahariensis, p. 420 ; Sporophila longipennis, p. 429 

 S. guituralis roraimce, p. 435 ; Duncanula duncani, p. 440 

 P seudor.hloris roraimce, p. 457 ; Piranga saira maceonnelli, p. 524 

 Sturnella magna praticola, p. 572 ; S. magna monticola, p. 573. 



Mr. H. Grronvold has, as in the previous volume, prepared the 

 original drawing of each of the coloured plates and of the text- 

 figures which have, in the present volume, been reproduced by 

 the Sun Engraving Company. 



It is much to be regretted that, owing to the War and its after 

 effects, the publication of the present volume has been so long 

 delayed. 



I have pleasure in expressing my best thanks to the fol- 

 lowing gentlemen for their assistance during the preparation of 

 this volume : — Lord Eothsohild, Mr. Percy R. Lowe of the 

 British Museum (Natural History), and Mr. Tom Iredale. 



CHARLES CHUBB. 

 London, November 18th, 1921. 



BIBLIOGRAPHY. 



Beisbe, William G., Ihness Habtley, and Paul G. Howes.— 

 Tropical Wild Life in British Guiana, vol. i. New york, 1917, 

 pp. XX, 504. 



