A protective cover that protects the face of a watch.
1So you can watch glass shatter and roofs fall down in front of you.
2The beaker is then covered with a watch glass.
3On a watch glass mix thoroughly a very small piece of yeast with about 5 cc.
4The food, when moist, may be placed in the cages in the same kind of watch glass.
5Collect the skins, place on a watch glass and dry in the water oven for ½ hour.
6Put your watch glass to his lips.
7A watch glass serves as a basin.
8Filter on to a watch glass and let stand until the ether evaporates, and then observe the fat.
9This lies on the upper and less curved polar surface of the nutritive yelk like the watch glass on the yelk.
10Evaporate both, the larger portion in an evaporating basin over wire gauze, the smaller portion in a watch glass heated by steam.
11If any poison remained in my animal's caudal gourd, there must be at least some traces of it in the infusion in the watch glass.
12What else is there in the mixture in my watch glasses?
Translations for watch glass