Description:Dr Forbes Specificatin mercury bath thermometer. The thermometer is made of glass and is housed in a wooden case which has a hole at the top, possibly for suspension. The degrees in Farenheit are printed on a piece of paper which is inside the glass tube. Next to the temperatures are rating for the type of bath that will be achieved: freezing (0-32), cold (45), cool (66), tepid (86), warm (98) and hot (105). There is a piece of cork or wood plugging the bottom of the case.