...end uppermost, into an inverted jar of gas. When the finger is removed, the quicksilver falls IHnn the tube into the trough, or into a cup placed to...but a column must be left, a few inches long, and must be kept in its place by the finger. Remove the tube from the water; let an assistant dry it with...

...into a cup placed te receive it, and the tube is filled with the gas. The whole of thequicklilvcr, however, must not be allowed to escape ; but a column must be left, three or four inches long, and must be kept in its place by the finger. Remove the tube from the water...

...eight or ten inches long, and of very small diameter, is drawn out to a fine bore, and bent at this end, so as to resemble the italic letter /. The point...but a column must be left, a few inches long, and must be kept in its place by the finger. Remove the tube from the water; let an assistant dry it with...

...Placing the finger over the aperture at the straight end, the tube filled with quicksilver is nezt conveyed through the water, with the bent end uppermost,...but a column must be left, a few inches long, and must be kept in its place by the finger. Remove the tube from the water; let an assistant dry it with...

...with the gas. Tho whole of the quicksilver, however, must not be allowed to escape, but a column is to be left a few inches long, and kept in its place by...bent tube is then to be introduced into the aperture Fig. 253. of the tube standing over quicksilver, and on withdrawing the finger from that aperture,...

...letter /. The point is then immersed in quicksilver, which is drawn into the tube till it is (Hied by the action of the mouth. Placing the finger over...kept in its place by the finger. The tube is to be removcdfrom the water, and dried by an assistant with a towel or with blotting-paper; the point of...