T. C. Mendenhall—Liquids above the edge of a vessel. 129 
t. XVIIl.— Experiments for the determination of the height to 
which liquids may be heaped above the edge of a vessel ; b 
T. C. MenpEennatt, Columbus, Ohio. 
0 Ww 
that a slow motion in a vertical airecteon coutd be given it, under 
the control of a screw movement, so that it could be raised or 
lowered at will and through an inmappreciable distance if desired. 
A fine metallic point was made to move vertically over the center 
of the vessel in which the liquid was to be heaped, being attached 
to a vernier scale reading to thousandths of an in e man- 
her of making a measurement was as follows : 
The vessel with which the trial was to be made was first care- 
ma leveled, being for that purpose supported upon a tripod stand 
screw m i I 
ater, if the trial was made with water, was then poured into 
the other vessel until it reached the top or near the top of the 
trial vessel, T ow movement of the screw raised the one, 
