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J. H. Steward, 406, Strand, and 457, West Strand, London,

England. Established 1852.

1. Astronomical Refracting Telescope.

Equatorially mounted on cast-iron pedestal. Telescope of brass. Object-glass, 75 mm. aperture ; 107 cm. focal length. Two astronomical eyepieces with tinted glass heads for solar observations. Rackwork focussing adjustment. Supplementary Star Finding Telescope.—Equatorial mounting, with polar altitude adjustable from 0° to 70°. Right ascension and declination circles, 10 cm. diameter, reading by verniers to 20 seconds and 5 minutes respectively. Levelling circle to right ascension, with rack and pinion adjustment.

The telescope is driven by clockwork, and can also be driven by a handle with Hook’s joint from the eye end. Levelling screws are fitted to the base of the metal head, and there are a few degrees of adjustment in azimuth.

2. Astronomical Refracting Telescope.

As described above. Mounted on an oak tripod, and driven entirely by hand from the eye end (Fig. 1). A wooden case is supplied to contain the telescope and eyepieces.

Astronomical Telescope on Oak Tripod. FrG. 1.

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