Thanks to all who offers gems of wisdom re: gas images. I have found a suitable image (no copyright problems). The Google Images search was a revelation. Isn't it funny how you can look at a screen (e.g. Google search) so many times you don't really see it. There has to be a usability rule there!!! Cathy Morison Technical Writer Database Development, PMD Geoscience Australia ABN: 80 091 799 039=20 Website: www.ga.gov.au=20 ************************************************** To post a message to austechwriter, send the message to austechwriter@xxxxxxxxxxxxxx To subscribe to austechwriter, send a message to austechwriter-request@xxxxxxxxxxxxx with "subscribe" in the Subject field. To unsubscribe, send a message to austechwriter-request@xxxxxxxxxxxxx with "unsubscribe" in the Subject field. To search the austechwriter archives, go to www.freelist.org/archives/austechwriter To contact the list administrator, send a message to austechwriter-admins@xxxxxxxxxxxxx **************************************************