Joanne I do have a photograph of a canary in use underground at Northern United Colliery in the Forest of Dean. It was reproduced in Volume 2 of the Forest of Dean Branch. ISBN 1 874103 36 4. p288. Ian _______________________________________ Ian Pope Cartographer Oxford Centre for Cartography & Geographical Information Sciences School of Planning Oxford Brookes University Gipsy Lane Oxford 01865-483368 Chairman, Forest of Dean Local History Society http://www.users.waitrose.com/~iapope/LHSopening.html _______________________________________ %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%