TWENTY-SIXTH ANNUAL REPORT 109 



94 OBJECTS OF THE TROPICAL RESEARCH STATION 



Henry Fairfield Osborn, Zoologica, III, 1, p. 1. 



Brief history of the establishment of the Sta- 

 tion; its objects; resume of work accom- 

 plished. With map of region and photograph 

 of the British Guiana Station. 



95 CONTRIBUTIONS OF THE TROPICAL RESEARCH STATION 



William Beebe, Zoologica, III, 2, p. 15. 



Annotated List of the published contributions 

 of the Station, 1916 to 1921. 



96 A CHRISTMAS BIRD CENSUS OF KARTABO 



William Beebe and Inness Hartley, Zool Soc. Bul- 

 letin, XXIV, No. 6, p. 139. 



List of one hundred and sixteen species of 

 birds observed on December 27th, 1920, imme- 

 diately about the Station. Two photographs 

 of jungle about the Station; photograph of 

 Lesser Kiskadee Flycatcher nestlings, Pitan- 

 giis 1. lictor (Licht)., of young Dusky Night- 

 hawk, Caprimulgus nigrescens Cab., and of 

 the nest and eggs of the Rufous-fronted Ant- 

 catcher, Cijmhilaimus 1. lineatus (Leach). 



97 A STUDY OF SOME SOCIAL BEETLES IN BRITISH GUIANA 



AND OF THEIR RELATIONS TO THE ANT PLANT TACHI- 

 GALIA. 



William Morton Wheeler, Zoologica, III, No. 3, 

 p. 35. 



Associations of beetles, ants and other insects 

 to one another, and to their jungle host tree 

 Tachigalia, with especial reference to the 

 curious social beetles Coccidotrophus socialis 

 Schwarz and Barber, and Eunausihius ivheel- 

 eri Schwarz and Barber. With five plates and 

 nine figures. 



98 THE TACHIGALIA ANTS 



William Morton Wheeler, Zoologica, III, No. 4, 

 p. 137. 



Detailed list of the twenty-eight species and 

 varieties of ants inhabiting Tachigalia petioles 

 about the Station, with annotations as to 

 habits and interrelationships. Descriptions of 



