THE NEW BINOCULAR TELESCOPES. These instruments are the most powerful Binoculars that can be made to be suffi ciently portable enough for the tourist's use; their magnifying power is so great that they require a steady hand to use them, and the objects must be fully illuminated, otherwise they will not give as much satisfaction as the "Panergetic," or other high-class Binoculars; they should be regarded as Telescopes, more than as prospect glasses; and where there is a sufficient amount of light, and the circumstances are favourable to their use, objects may easily be made out by them which would be invisible with any ordinary Binocular. BINOCULAR TELESCOPE, with rack motion in centre to adjust it to the width of the eyes, LI O BINOCULAR TELESCOPE with object-glasses 1 inches diameter... THE NEW BINOCULAR TELESCOPES IN BINOCULAR TELESCOPE, with rack motion in centre to adjust it to the width of the eyes, Opera Glasses in choice enamel, inlaid with gold or silver and jewels, for presentation. Special Eye-Glasses worked for Opera and Field Glasses for peculiar sights. Spectacles and Eye. Glasses carefully adapted to suit all peculiarities of vision. Catalogues of Telescopes, Microscopes, Spectroscopes, Meteorological and other Instruments on application. OPTICAL AND PHYSICAL INSTRUMENT MAKER TO H.M. GOVERNMENT, THE ROYAL SOCIETY, THE PRIZE MEDAL, 1862. Microscopes, Spectroscopes, Opera Glasses, &c., &c. |