Takes a pencil like stick and fastens by warming a lot of this hardened Canada balsam. Having the specimen ground to plane ready for cementing he lays the glass slip on a warm (not hot) heating table and finally puts a fairly large quantity of Canada balsam on it. After the balsam has been well warmed and completely flowed out all creases, the specimen is laid, and the slide turned over with the glass up, the specimen on the round table. They are rubbed back and forth, until all the Canada balsam pressed out and are the air bubbles. The Canada Balsam is stiff or soft that of the slide is held in the fingers some minutes then is a slight contraction of the balsam adhering to the fingers, The specimen is now ground on the grinding machine with the Carborundum. This done in a few minutes. Then the slide when thus are finishes it in a few minutes more on the emery disk. This now taken and laid again on the warming table and fresh Canada Balsam for the table laid on. Before this it is washed with a camels hair