BENJ. PIKE S, JR., DESCRIPTIVE CATALOGUE. 



Fig. 60S. 



EN- PIKI 

 N.Y. 



'fl 



31 



Fig. 607. Best flat front JBarome- 



< er ._(Fig. 606.) The best 

 flat front mahogany case 

 barometer having vernier 

 and glass door, with large 

 thermometer in the body 

 of the case, having a long 

 cylindrical bulb to the tube, 

 exposing thereby a large 

 surface to the atmosphere, 

 graduated to Fahrenheit 

 and centigrade scales, and 

 covered with glass, porta- 

 ble screw at the bottom, 

 and the case highly po- 

 lished. Price, $16.00. 



Best Circular Front 

 Rosewood Barometer. 

 (Fig. 607.) The most 

 elegant barometer is the 

 circular front rosewood 

 mounted instrument, with 

 large thermometer in the 

 body of the case, having 

 Fahrenheit and Reaumur's, 

 or centigrade scales, and 

 the tube having a long cy- 

 lindrical bulb, the scales co- 

 vered with circular glasses ; 

 vernier to the scale hav- 

 ing rack motion, which 

 is moved by a key in the 

 front of the case below the 

 scales. The case of this 

 instrument is highly finish- 

 ed and polished, and be- 

 sides being an instrument 

 of great utility is quite 

 ornamental. 



Price, |22,00 and 



$25.00. 



