Editorial 

The Trinidad and Tobago Field Naturalists' Club. 

Rehabilitation of Abandoned Quarry Sites in Trinidad, W.I. -  Paul Comeau 

Abundance and Seasonal Migration of Birds at Port of Spain Sewage Ponds. - Graham White 

Possible lntra-Regional Bird Migration in Trinidad and Tobago - Richard ffrench 

Comparative Abundance of Birds in Trinidad's Northern Range - Richard ffrench and Margaret ffrench 

Christmas Bird Counts for the Years 1981-1990 - Ian Lambie and Vishnu Debie 

First Report of the Trinidad and Tobago Rare Bird Committee - Floyd Hayes and Graham White 

Observations on the Reptiles and Mammals of Chacachacare, Bocas Islands, With Notes on Five Species New to the Island. - Sarsha A. Lall and Floyd Hayes 

Skipper Butterflies (Hesperiidae) of Trinidad. Part 10, Pyrginae Completed, Groups F and G -  Matthew J.W. Cock 

Book Review: Amphibians and Reptiles of Trinidad and Tobago by John C. Murphy. - Christopher K. Starr and Hans E. A. Boos 

Tribute: Arthur M. Greenhall - Geoffrey Gomes and Victor C. Quesnel