OF OPTICAL INSTKUMENTS. 97 



1015. Good Plain Blue Steel Spectacles, per doz., 10s., 12s., and 15 



1016. GOOD PLAIN WHITE METAL OR GEBMAN SILVEE SPECTACLES, much used in 



warm or moist climates, per doz., 9s. 6d., 11s. 6d., 15s., 18s., and 110 



1017. Fine Steel Spectacles, single joint, best glasses, for either short or weak sight 



076 



1018. best Brazilian pebbles . . 10 6 



1019. with neutral tint glasses. 086 



1020. FINE STEEL SPECTACLES, double joints, best glasses . . 086 



1022. best Brazilian pebbles (fig. 1022) 0116 



1023. with neutral tint glasses 096 



1024. Fine Steel Spectacles, slanting or angular, with best periscopic glasses to 



suit the curve of the eye, for very delicate and sensitive vision 10 6 



1025. FINE STEEL SPECTACLES, slanting or angular, with periscopic pebbles 13 6 



1026. Fine Light Steel Spectacles, blue or straw coloured, invisible, with best grooved 



glasses, and with sides to curl round the ears, for riding, etc. 10 6 



1027. EXTEA FINE LIGHT STEEL SPECTACLES, as above . . 14 6 



1028. with best Brazilian pebbles 17 6 



1029. Fine Light Steel Spectacles, with corrective bridge for very prominent eyes 



or low noses, with best round glasses .... 15 



1030. FINE LIGHT STEEL SPECTACLES, as above, pebbles . . 18 6 



1032. ., neutral tint glasses (any shade) 



14 6 

 The above Nos. 1026 to 1032 are much liked and recommended for fishing, riding, or shooting with. 



1033. Best Eye-protectors, double joints, with tinted glasses, front and side, horse- 



shoe shape, small size, very neat (fig. 1033), p. 96 . . 14 



1034. BEST ETE-PEOTECTOES, as above, large size . . 7 6 to 15 



1035. Best Eye-protectors, double joints, with fine blackened brass-wire gauze shields, 



and neutral tint glasses (admirable for India and other warm climates) 

 (Jig. 1035), p. 96 17 6 



1036. BEST EYE-PEOTECTOES, as above, with crape shields . . 17 6 



1037. as No. 1035, with plain dark-wire gauze shield 076 



1038. BEST EYE-PEOTECTOES, full size, in strong best blue steel frames, with globular 



or concave convex neutral tinted glasses, various shades . 10 6 



1039. BEST EYE-PEOTECTOES OR GOGGLES, with elastic sides, fine gauze shields 



and neutral tint glasses, for protection against snow, dust, or in railway 

 travelling . . . . . 3 6 to 8 6 



1040. Occhiombras or Transparent Eye-shades (CALKIN'S patent), in four colors, 



viz., brown, black, green, and blue (fig. 1040), p. 96 . . 066 



These eye-protectors are of very light framework covered with thin transparent gauze, 



the support on the nose being almost invisible ; they protect the eyes from wind and dust as 



well as the sun, giving at the same time perfect ventilation, and may thus be used during even 



violent exercise. 



1042. Other eye-shades of the most approved kinds, for shading and protecting the 

 eyes, without obstructing the free circulation of air on the forehead, from 



1 6 to 7 6 



H 



