A collection of photographs mounted on card, measuring approximately 205 x 155 mm., with brief typed captions pasted to the mounts. The collection shows stages in the extraction, transportation and refining of pitch from the asphalt lake at La Brea, in the south-west corner of the Island. Raleigh used the pitch from this lake to caulk his ships as early as 1585, declaring it to be the best he had ever used.

Collection of colour 35 mm transparencies given by the High Commission for Trinidad in August 1982. When planning the exhibition 'Commonwealth in Focus' the library requested material from Commonwealth Governments and these slides were sent in response. A continuous slide show was prepared to portray contemporary aspects of the countries of the Commonwealth and nine of these slides were copied for inclusion. The image descriptions are copied from the list supplied with the slides.

A collection of loose photographs in the form of postcards with handwritten captions beneath the prints.

A collection of loose photographs measuring approximately 250 x 230 mm and captioned on the reverse in pencil. The captions have been reproduced as found. The photographs illustrate buildings and industries on the island.