C. Barus — Viscosity of Solids. 



193 



Table 4. 



Viscous effects of twisting glass-hard steel alternately in opposite directions. 

 Normal wire No. 1 ; ^=30 cm p='0405 cm . 



Eemarks. 



T 



Time. 



m 



T 



Remarks. 



r 



Time. 



m 



6— 6' 



— ™ xlO 6 



No. 18a 

 An. 25° 



-•102 



9 h 13 m 

 15 

 17 



28 

 35 



39 

 41 



52 

 60 





 2 



4 



15 



22 



-o-oo 



-1 90 

 — 5-90 

 -7-30 



No. 18 8 



+ •102 



12 h m 

 2 

 4 

 20 







I 



20 



+ o-oo 



0-85 



3-80 





No. 18 9 



-•102 



12 h 24 m 

 26 

 28 

 40 







2 



4 



16 





No. 18 a 



+ ■102 







2 



4 



15 



28 





 2 

 6 



17 

 23 



+ 0-00 

 2 30 

 7-50 

 9-35 



-o-oo 



-2-10 

 —4-75 

 -5-70 



-o-oo 



-0-60 

 -3-45 





No. 18 10 



+ •102 



12 h 42 m 

 44 

 46 

 54 

 63 





 2 

 4 



12 

 21 



+ o-oo 



No. 18 3 



-•102 



10 h 2 m 



4 



8 



19 



25 



0-80 

 2-55 

 3-70 





No. 18n 



-•102 



\h 5m 

 7 



9 

 21 







2 



4 



16 



—o-oo 



No. 18 4 



+ •102 



10 h 28 m 

 30 

 36 

 41 



48 







2 



8 



13 



20 



+ 0-00 

 2-95 

 4-40 



5-60 



-0-65 

 — 2-55 





No. 18 19 



+ •102 



]> 23 m 

 25 

 27 

 36 







2 



4 



13 



+ 0-00 

 0-70 



No. 18 5 



-•102 



10 h 50 m 

 52 

 59 

 10 







2 



7 



20 



"5 



2 



4 



14 



22 



-o-oo 



-2-30 

 -3'95 



2-45 





After several days. 





No. 18 18 



-•102 



9 h 47m 

 49 

 51 

 60 







2 



4 



13 







No. 18 6 



+ •102 



ll h ll m 

 13 

 15 

 25 

 33 



+ 0-00 

 1-10 

 375 

 4-95 



—o-oo 



—090 



-3-00 





No. 18 14 



+ •102 



10 h 2 m 

 4 

 6 

 15 







2 

 4 



13 



+ 6 : o"o 



No. 18 7 



-•102 



ll h 35 m 

 37 

 39 

 56 

 57 







2 

 4 



21 



22 



-o-oo 



-0-75 

 -3-45 

 -3-55 



1-00 

 6-40 





No. 18 15 



-•102 



10 h I7 m 

 19 

 21 

 30 





 2 



4 

 13 



-o-oo 



-0-90 

 -3-20 



Table 5. — Viscous accommodation of glass -hard steel. 



I ° 



a 



aLA x i 3 



T 



"cc . 



! 



CD 



s 



EH 



At=^xl0» 



T 







— 0' 



AT—L x i 3 

 r 



1 



m 



-1-90 



5 



97 ra 



-1-00 



9 



191 m 



- -60 



2 



24 



+ 2-30 



6 



118 



+ 1-10 



10 



209 



+ -80 



3 



49 



-1-20 



7 



142 



-0-75 



11 



232 



- -65 



4 



75 



+ 1-40 



8 



167 



+ 0-85 



12 



250 



+ -70 



Am. Jour. Scl— Third Series, Vol. XXXVI, No. 213.— Sept., 1888. 

 13 



