Screen mercury thermometer, sheathed, by G. H. Zeal Ltd., Merton, London, England, 1985. For use in weather station screen, scale range (-40 to +35 degrees Centigrade), Cat. No. 17146. Screen mercury thermometer, sheathed, 1985 Meteorology 1985
Solar radiation alcohol thermometer, by G. H. Zeal Ltd., Merton, London, England, 1985. Consists of an alcohol thermometer inside a glass sheath with large bulb, scale range (-10 to +95 degrees Centigrade), Cat. No. 17731. Solar radiation thermometer, by G H Zeal Ltd, 1985 Meteorology 1985
"Tempa-DOT" disposable thermometer, with associated literature (manufacturer's sample), by Zeal, London, 1986 "Tempa-DOT" disposable thermometer Clinical Diagnosis 1986
