12 



C. Barus — Viscosity of Steel and 



Table 10. 

 r=190°; r=20°; a=26 CD >; &=30 cm ; £=60 cu > ; k=U™\ Rods: No. 11, 

 soft; No. 12, soft ; 2p=0-082 cm . 



Date. 



10/3, 10 h 05" 



10 11 

 16 

 23 

 31 

 40 

 51 



11 11 

 25 

 42 



10/3, ll h 49 m 



12 04 

 15 

 24 

 40 



12 45 



53 



1 30 



<px 10 3 



O'OO 



o-io 



0-18 

 0-30 

 0-43 

 0-58 

 0-76 



1-10 

 1-33 



1-63 



0-00 



-T73 



o-ooi 



0-25 

 043 

 0-58 

 0-85 



0-93 

 1-06 



1-68 



< 



B?T3 



< 



tt»ci 



Date. 



10/1, l h 43 u 



L 52 

 57 



2 06 

 15 

 23 



2 29 

 37 

 51 



10/3, 3 h 08 u 



3 20 



10/3, 



411 15 n 

 30 



4 45 



h £xl0 3 



0-00 



0-15 

 0-23 

 0-38 

 0-53 

 0-66 



0-76 



0-90 

 1-13 



o-oo 



-2-63 



■2-89 

 -3-00 

 •3-08 

 -3-12 



-2-59 

 -2-17 



-1-90 



0-00 



0-20 



0-00 

 0-25 ! 







24-3 



~~ Wo 



- 0-9 



0-50 -46-0 



O C3 

 03*3 



Yap. on. 



Vap. on. 



* t (cold rod)— 3°, imparted before heating. 

 f r (cold rod) + 3°, imparted before heating, immediately after *. 

 % t (cold rod)— 3°, imparted before heating, immediately after f. 

 §t (cold rod) + 6°, imparted before heating, immediately after \. 

 \t (cold rod)— 6°, imparted before heating, immediately after §. 



7=360°; 2 V =20°; a=9 cm 

 soft; No. 12, soft; 2p=0-082 c 



Table 11. 

 6=30 cm ; Z,= 60 cm ; &=34 cn 



Rods: No. 11, 



Date. 



h 



<j>xl0 z 





Date. 



h 



<px 10 3 





11/3, ll h 25 m 



o-oo 



o-oo 



% 



11/3, 



2 h 2 lm 



25 



0-30 

 0-37 



60-1 

 61-4 





11 34 



0-15 



- 9-9 



1 





35 



0-53 



63-2 



s § 



36 



0-18 



— 13-0 



1 $ 













39 



0-23 



— 14-8 



{ >§ 





2 54 



0-85 



59-7 



) < 



44 



0-32 



— 16-6 



C -1 





3 01 



0-97 



59-5 



y mv 



47 



0-37 

 0-47 



-17-9 

 -19-0 



J 





28 



1-42 



59-3 



r s 



53 



11/3, 



4 h 25 m 



o-oo 



o-oo 



X 



11 59 



0-57 



-16-8 



1 , 





4 32 



o-io 



— 22-2 



-> 



12 05 



0-67 



— 15-9 



B0 





34 



0-15 



— 31-9 





10 



0-75 



-15-4 



^5 



y ° 





36 



0-18 



—36-0 



< 



18 



0-88 



-15-1 







39 



0-23 



-40-4 



27 



1-03 



— 14-8 



§s 





41 



0-27 



-41-9 



> ° 







1 13 



1-80 



-14-3 



J ' 





45 

 51 



0-33 



0-43 



—44-1 

 —45 7 



11/3, 2 l1 03 al 



O'OO 



o-oo 



t 



B 













57 



0-53 



—47-2 





2 06 



0-05 



9-8 



Is- 





5 10 



0-75 



-49-6 



J 



09 



o-io 



25-6 













11 



0-13 



35-4 



* 





5 17 



0-87 



-46-3 



) „ < 



12 



0-15 



44-9 





26 



1-02 



—44-9 



f O ga 



r «5w 



15 



0-20 



53-4 



J 6 



12/3, 



9 h 25"> 



17-00 



—433 



f " a 



18 



0'25 



57-1 













* r (cold rod)— 3°, imparted before heating. 



f r (cold rod) + 3°, imparted before heating, immediately after *. 



X T (cold rod)— 3°, imparted before heating, immediately after f . 



