XI. 
Description of a new Stand for a Reflecting Telescope. 
BY THE REV. JOHN PRINCE, LL. D., A. A.S. 
Tue brass tube of the telescope, for which this stand was made, 
is 42 inches long and 6 inches in diameter. It was mounted origi- 
nally in Europe on a triangular stand, and was very unsteady, be- 
ing supported by a small brass pillar with a joint. The tremor 
made it very difficult to adjust the instrument to distinct vision. 
It is now mounted on a quadrangular stand, and an axis; and is 
very steady, having no tremulous motion when the hand is applied 
to the adjusting wire. 
The stand is made wholly of wood, except the parts which 
give motion to the telescope ; these are made of brass. ‘The stand 
consists of two parts, which may be separated from each other. 
The upper part, on which the Telescope is fixed, has a mahog- 
any board for a base, 15 inches square and 1 inch and % thick ; 
having block-feet under it, to accommodate the axis of a circular 
board of the same thickness, which revolves on it. The circular 
board has 6 friction rollers under it and moves very steadily, 
being held down upon the base by a plate and screw on the lower 
end of the axis. To this circular board two upright pillars are fixed 
which support the Telescope on an axis. The axis is made of 
hard yellow wood ; except the ends, which are brass, turning on 
brass sockets. The axis is 6 inches wide where the Telescope 
