OP ARTS AND SCIENCES. 



103 



TABLE II. — Comparison of the Bourdon Gauge and toe Tait 

 Gauge, No. 0, Four Months later. 



TABLE IIL — Comparison of Large Bourdon Gauge with the Tait 



Gauge No. 1. 



p = .0220 cm.; L = 100 cm.; A^ = 1cm.; ^o = •27 cm. 



Table IV. both gauges are standardized by comparison with a small 

 sensitive Bourdon gauge, identical with the large Bourdon gauge, ^j 

 and F^ are the factors of the Tait gauges Nos. 1 and 4, thus found. 



