45, CORNHILL, E.G., AND 122, EEGENT STEEET, W., LONDON. 



FIG. 165. 



FIG, 161. 



FIG. 164. 



FIG. 163. 



FIG. 164*. 



PORTABLE PEDIMENT BAROMETERS. 



160 Model Barometer, with vernier and thermometer, also 



screw, to render it portable ...... 



161 Pediment Barometers, with ivory scales, thermometer, 



SLIDING VERNIER, the tube visible throughout the 

 whole length, and portable screw, (fig. 161) 



162 Pediment Barometer, with glass cover over the face, 



rackwork vernier and thermometer, exposed tube 



163 Portable Pediment Barometer, Round Top Frame in, 



Oak, Mahogany or Rosewood, the tube covered 

 entirely, rackwork Yernier, and a Thermometer on 

 the front (fig. 163) ... .... 



164 Ditto ditto, with Square Moulded Top, large tube, and 



one Yernier (figs. 164 and 164*) 



165 Ditto ditto, with extra large tube, 2 rackwork verniers, 



ivory scales, with Thermometer, in Oak, Mahogany, 

 Walnut, or Rosewood frame (fig. 165) .... 



Each. 

 s. d. 



220 



Each. 

 s. d. 



110 



2 10 



2 15 



330 



3 10 4 10 



550 660 



