Try out the NEW Eighteenth-Century Book Tracker bookmarklet.
Gray, Thomas - Poems, 1776 (ESTC T125811)
Poems by Mr. Gray. A new edition
Place of Publication:
Printed for J. Murray, no. 32. Fleet Street, and C. Elliot, Edinburgh
Thomas Gray Archive - Oxford University, NA
Copy in The Thomas Gray Archive library at the University of Oxford. This text at the Thomas Gray Archive is readable on screen, with a downloadable .pdf available, as well. The site also offers expertly-annotated clean texts versions of Gray's poems.