﻿458 



Barus and Strouhal — Viscosity of Steel. 



i?=200 < -' 1 »; £=27 cn 

 annealed. 190°, 2 h , V= 



Table 10. — Apparatus II. 



;<0-2 cm . Rods: No. 11, glass-hard,- V=— 180° 



+ 180 d . 2p=0-082 cm . 



No. 12, 



Date. 



0xlO 3 



h 



0o x 10 3 



Date. 



<j)X 10 3 



h 



0o x 10 3 



1/7, 4> 00 in 



4 35 



5 36 



(*) 

 2-913 

 2-767 

 2655 



o-oo 



0-58 

 1-60 

 2-97 



(*) 



— 0-073 



+ 0-073 



0-185 



2/7, 9 h 20 m 

 1 45 

 5 09 



2-215 

 2-133 

 2-080 



17-33 



21-75 

 25-15 



0625 

 0-707 

 0-760 



6 58 



3/7, 8 h 19 m 

 12 12 

 6 28 



1-891 

 1-843 

 1-757 



4032 

 44-20 

 50-47 



0949 

 0-997 

 1-083 



* Adjusted, r + b +/. 



Table 13. — Apparatus III. 

 i?=370 cm ; £=26 cm ; Z<0'2 cm . Rods: No. 13, glass-hard, ^= — 180° 



No. 14, 



annealed, 190 



\ i h ; 1>= 



: + 180° 



. 2p = 0-082 cm . 









Date. 



</>x 10 3 



h 



o xlO 3 



Date. 



0xlO 3 



h 



00 x 10 



14/6, 12 h 30 m 



1 10 



2 05 



3 51 



(*) 

 1-025 

 1-198 

 1-402 

 1-448 

 1.525 

 1-606 

 1-648 



o-oo 



0-67 

 1-58 

 3-35 

 H-85 

 4-98 

 6-42 

 7-35 



(*) 



— 0-065 

 + 0-108 

 0-312 

 0-858 

 0-435 

 0-516 

 0-558 



21/6, 8 h 22 m 

 12 15 

 5 44 

 f7 17 



3-732 

 3-763 

 3-810 

 3-823 



16991 



2-692 



4 21 



5 29 



6 55 



7 51 



22/6, 9 h 10 m 



1 18 



2 20 

 6 42 



. 3-913 



3-943 

 3-9.8 

 3-980 



19338 



2-856 



15/6, 9 h 04 m 



10 00 



11 15 



1 10 



2 58 



4 17 



5 41 



2-022 

 2-042 

 2-073 

 2-121 

 2-165 

 2-195 

 2-223 

 2-233 



20-57 

 21-50 

 22-75 

 24-67 

 26-47 

 27-78 

 29-18 

 2980 



0-932 

 0-952 

 0-983 

 1-031 

 1-075 

 1-105 

 1-133 

 1-143 



23/6, 8 h 30 m 

 12 43 

 5 42 



4-056 

 4-077 

 4-11] 



214-86 



2-971 



24/6, 9 h 02 m 

 12 39 

 4 58 



4-197 

 4-222 

 4-248 



240-38 



3-132 



6 18 



25/6, 8 h 44 m 

 11 38 

 f5 31 



4-335 

 4-351 

 4-383 



264-13 



3266 



16/6, 8 h 00 m 

 9 32 



2-467 

 2-492 

 2-556 

 2-597 

 2-638 



48-26 



1-460 





1 07 

 3 19 



5 50 



26/6, 8 h 29 m 

 12 10 

 3 12 

 6 52 



4-448 

 4-467 

 4-483 

 4-504 



289-18 



3-385 



17/6, 8 h 34 m 

 10 29 

 12 43 



2-861 

 2-899 

 2-942 

 2*995 

 3-043 

 3-066 



73-43 



1-878 





27/6, 8 b 52 m 

 3 06 



4-575 

 4-609 



311-49 



3-502 



3 35 



5 29 



6 45 



28/6, 8Ml m 

 11 30 

 5 25 



4-699 

 4-720 

 4-744 



335-87 



3631 



18/6, ll h 45 m 

 4 39 

 f6 09 



3-236 

 3-283 

 3-293 



9902 



2-181 



29/6, 8Ml m 

 3 46 

 5 52 



4-811 

 4854 

 4-866 



361-44 



3-754 



19/6, 9 h 07 m 

 12 19 

 2 25 



3-410 

 3-432 

 3-445 

 3-458 



120-92 



2-346 



30/6, 8 h 53 m 

 12 26 

 5 25 



4-943 

 4-962 

 4982 



384 41 



3-872 



5 50 



1/7, 8 h 47 m 



5-028 



404-28 



5-028 



20/6, 8 h 53 ra 

 10 53 

 3 26 



7 44 



3-567 

 3-581 



3-622 

 3-652 



145-23 



2-515 





* Adjusted, r—b—f. 



f Re-adjusted after this observation. 



