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| Comprising two glass tubes 225 x 8 mm length x bore, one
closed at the top other open, connected by means of rubber
pressure tubing of 1 m length 10 mm outside diameter x 5
mm bore, both mounted on the adjustable sliding metal
brackets which can be locked in any position on the support
rods fixed on the heavy stable iron base. Polished wooden
stand 1.05 m high, carries a wooden scale graduated 0-100
cm with millimeter divisions in the centre and figured every 1
cm up either side.
Supplied without mercury.
l Also available with wooden base in the shape of trough.
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