Isometrics of Liquid Matter. 



345 



Table III. — Comparison of large Bourdon Gauge with the 

 Tait Gauge No. 1. 



p = '0220 centim. ; L = I00 centim. ; a x — l centim. ; 

 « =:27 centim. 



Large 

 Bourdon. 



Pressure 

 " on." 

 No. 1. 



Pressure 

 " off." 

 No. 1. 



Large 

 Bourdon. 



Pressure 

 " on." 

 No. 1. 



Pressure 

 " off." 

 No, 1. 



Atm. 



centim. 



centim. 



Atm. 



centim. 



centim. 







17-81 



17-96 







5-96 



6-21 



100 



2130 



21-00 



100 



9-42 



914 



200 



25-03 



24-31 



200 



1317 



1236 



300 



28-85 



27-75 



300 



17-00 



15-74 



400 



32-63 



31-32 



400 



20-74 



1913 



500 



36-50 



35-12 



500 



24-60 



22-84 



600 



40-35 



39-11 



600 



28-45 



26-75 



700 



44-05 



43-10 



700 



32-15 



30-76 



800 



47-55 



47-12 



800 



35-78 



34-75 



900 



51-25 



51-27 



900 



39-57 



39-00 









1000 



43-36 



43-40 



Table IV. — Comparison of Tait Gauges Nos. 1 and 4. 



No. 1. L=100 centim. ; a = '27 centim. ; a x = l centim. 

 No. 4. L= 58 centim. ; a = # 27 centim. ; a x = l centim. 



No. 1. 



No. 4. 



Small 

 Bourdon. 



No. 1. 



No. 4. 



*v 



*v 



centim. 



centim. 



atm. 



centim. 



centim. 



cm. /atm. 



cm. /atm. 



- 0-40 



12-40 







-1-30 



12-02 



3-65 



1-63 



+ 8-38 



16-45 



100 



4-2-28 



13-63 



3-69 



1-67 



18-23 



20-85 



200 



6-00 



15-29 



3-60 



1-67 



28-43 



25-40 



300 



9-66 



16-97 



3-73 



1-61 



38-36 



29-80 



300 



9-65 



16-96 



3-69 



1-66 



5004 



34-91 



200 



5-90 



15-26 







59-93 



39-41 



100 



+2-20 



13-62 







*6375 



41-25 







-1-30 



1204 







55-03 



37-33 













42-89 



32-06 













31-90 



27-19 













20-09 



21-86 













+ 9-02 



16-78 













- 055 



12-30 













* Eespectively 1780 and 1790 atmospheres. 



of No. 1 is of small bore, to insure special accuracy of reading. 

 Both capillaries were calibrated. Of the many series of ob- 

 servations made, two for No. 1 are given in Table III., and 



