192 



Mr. C. Barus on Maxwell's Theory of the 



Table I. — Viscous Detorsions of Hard Steel. 

 Z=30cm. p = 0-0405 cm. a = 28'5 cm. /3=31'5 cm. 



No. 

 An. 



2(0+00- 



0'. 



e. 



Time. 



^ _0 '^1O 3 



No. 

 An. 



r. 



2(0 + 0'). 



9'. 



e. 



Time. 



t^'xio 3 . 



T 



r 





Radians. 



°0. 



Minutes. 



Eadians. 





Eadians. 



°c. 



Minutes. 



Radians. 



2. 



-•1045 



20 



3 



+0-00 



2. 



-•1027 



100 



2 



-o-oo 



450°. 





20 



17 



50 



004 



007 



450°. 





20 



6 



18 



-135 

 -2-89 





-•0003 





60 



009 





- -0020 





29 



45 



58 



-3-66 



4-53 



-510 





+ •1027 



20 



1 



-o-oo 





4 -1027 



100 



2 



+000 







20 



8 

 28 



- -09 



- -18 







20 



20 

 33 



2-51 

 376 





+ 0020 





52 



- -18 





+ •0020 





47 



4-72 



3. 



-•1033 



20 



2 



+0-00 



3. 



-•1027 



100 



2 



000 



450°. 





20 



6 

 19 

 28 



•25 

 •49 

 •63 



450°. 





20 



11 

 20 

 34 



-1-30 

 -1-78 

 -2-22 





-•0014 





44 



•71 





-0020 





48 



-2-89 





+ •1030 



20 



2 



-o-oo 





+ •1027 



100 



2 



+0-00 







20 



8 

 20 



- -04 



- -04 







20 



10 



18 



4-58 

 6-84 





+ •0017 





30 



- -04 





+•0020 





24 



809 



4. 



-1033 



22 



2 



-000 



L 



-•1007 



100 



3 



-000 



360°. 





22 



17 



42 



- -27 



- -35 



360°. 





22 



15 



28 



-2-56 

 -3-64 





-•0014 





54 



- -35 





-0041 





46 



-4-48 





+ •1007 



22 



1 



+0-00 





+ •0998 



100 



2 



+ 000 







22 



33 

 44 



213 

 233 







22 



12 

 22 



7-83 

 11-21 





+ 0041 





64 



2-56 





+ •0049 





37 

 49 



14-49 



1628 



5. 



-•1027 



23 



2 



-0-00 



5. 



-•1019 



100 



3 



-o-oo 



360°. 





23 



15 



- -27 



360°. 





23 



22 



-330 









21 



- -36 





-•0029 





32 



-4-32 





-•0020 





34 



- -40 















+ •1021 



23 



2 



+0-00 





+ •1015 



100 



2 



+000 







23 



12 

 19 



•36 

 •42 







23 



7 

 20 



312 

 5-94 





+ •0026 





27 



•45 





+•0032 





27 



6-97 



