234 



CAPTAIN SABINE ON THE REDUCTION TO A VACUUM 



The vibrations in this experiment are as follows : 

 In free air, the commencing series 86306.46 ; Barom. 29.026 ; Therm. 44°.25 

 the concluding series . 86306.47 ; Barom. 28.967 ; Therm. 45 .7 



Mean . . . 86306.46 ; Barom. 28.996 ; Therm. 44 .97 



In air within the receivers . . .•,. . . 86306.31 ; Barom. 28.986; Therm. 45 .95 



Whence the vibrations within the receivers are in this experiment in defect, 

 0. 1 5 per diem. 



Exp. XI. — February 22nd. Clock gaining 4'" 14^38. Observer Mr. Taylor. 



•2 '3 

 2! .2 



S« CO 



S a 



»5 



3 

 23 



24 

 25 



Thermometers. 

 1 



44.6 

 44.8 



44.7 



44.7 

 44.'7 



Stand- 



anl 

 Barom. 



Times of 



Disapp. Re-app. Coincidence. 



29.03 



29.08 



37 16 

 45 26 

 53 36 

 37 28 

 45 43 

 53 58 



37 26 



45 37 



53 47 

 37 50 



46 05 



54 19 



} 



m 8 



1 45 31. .33 



45 53.83 



Arc registered 

 and true Arc. 



Div. o 



0.92=1.10 



0.29 = 0.35 



Mean 

 Interval. 



)>491.92 



Correc- 

 tion for 

 Arc. 



+0.79 



Reduct. 

 to36^ 



Corrected 

 Vibrations 



at 36°. 



+3.66 



29.055; Capill. + 0.019; Reduction to 32°- 0.040; = 29.034. 



86306.53 



86306.53 



oa 



£ * S 



£ £-3 



a; = u 



> .2 w 



'3 B *" 



1 



2 



3 



23 



24 



25 



45.0 

 43.8 



44.4 



44.8 

 43.7' 



inch. 



16 



16 



58 28 

 6 38 



14 47 

 58 38 



6 52 



15 06 



58 41 



6 52 

 15 01 



59 08 



7 16 

 15 31 



h m 8 ' Div. o 



2 6 44.5 0.90 = 1.08 



5 7 05.17 0.28 = 0.34 



:>491.85 



+ 0.76 



+ 3.52 



29.13; Capill. + 0,019; Reduction to 32° - 0.039; = 29.110. 



86306.30 



86306.30 



^•3 



> V 



O a> 



E* 

 S S 



> o 



•3 -a 



3 

 23 

 24 

 25 



43.5 



42.3 



42.9 



43.6 

 42!5 



inch. 



29.17 



29.22 



57 22 



5 31 



13 42 



57 52 



6 06 



14 17 



57 31 



5 42 



13 53 



58 20 



6 32 



14 44 



h m s 

 6 5 36.83 



9 6 18.5 



Div. o 



0.93 = 1.12 



0.32 = 0.38 



;>492.8 



+0.89 



+2.90 



29.195; Capill. + 0.019; Reduction to 32° — 0.035; = 29.179. 



86306.49 



86306.49 



The vibrations in this experiment are : 

 In free air, the commencing series . 86306.53 ; Barom. 29.034 ; Therm. 44°.7 

 the concluding series . 86306.49 ; Barom. 29.179 ; Therm. 42 .9 



Mean 

 In air within the receivers 



86306.51 ; Barom. 29.106 ; Therm. 43 .8 

 86306.30 ; Barom. 29.110 ; Therm. 44 .4 



