OF ARTS AND SCIENCES : FEBRUARY 14, 1865. 



45^ 



Cast-iron 21 feet long. 



if solid, as in the first column, or if hollow, as in the succeed- 

 the respective headings. 



Diameter 

 of I'illar 

 outside. 



Inches. 



2 



n 



3 



H 



3^ 



4 



4i 

 4^ 

 4f 



5 



6 



6| 



7 



7i 

 7^ 

 7f 



8 



8J 

 8^ 



9 



n 



03 



10 



li Inch. 



1.58 

 2.00 



2.49 

 3.05 

 3.68 

 4.39 



5.18 

 6.06 

 7.03 

 8.08 



9.23 

 10.48 

 11.82 

 13.27 



14.82 

 16.47 

 18.24 

 20.12 



22.12 

 24.23 



26.36 

 28.32 



30.35 

 32.44 

 34.59 

 36.79 

 39.06 



\% Inch. 



2.02 



2.53 

 3.10 

 3.76 

 4.51 



5.34 



6.26 

 7.27 

 8.38 



9.60 

 10.92 

 12.35 



13.88 



15.53 

 17.30 

 19.19 

 21.19 



23.33 



25.59 

 28.02 

 30.15 



32.35 

 34.61 

 36.94 

 39.34 

 41.79 



1^ Inch. 



2.55 

 3.14 

 3.82 

 4.59 



5.45 

 6.41 



7.47 

 8.63 



9.90 

 11.29 

 12.79 

 14.41 



16.15 

 18.02 

 20.01 

 22.14 



24.40 

 26.80 

 29.54 

 31.83 



34.19 

 36.62 

 39.12 

 41.70 

 44.34 



If Inch. 



3.16 

 3.86 

 4.65 



5.53 

 6.52 

 7.62 

 8.83 



10.15 

 11.59 

 13.16 

 14.85 



16.68 

 18.63 

 20.73 

 22.96 



25.34 



27.87 

 30.92 

 33.36 



35.87 

 38.46 

 41.14 

 43.89 

 46.71 



1| Inch. 



3.88 

 4.68 



5.59 

 6.60 

 7.73 



8.98 



10.34 

 11.84 

 13.46 

 15.22 



17.12 

 19.16 

 21.34 



23.68 



26.17 

 28.81 

 32.17 

 34.74 



37.40 

 40.15 

 42.99 

 45.91 

 48.91 



15 Inch. 



4.71 



5.63 

 6.66 

 7.81 

 9.09 



10.50 

 12.03 

 13.71 

 15.52 



17.49 

 19.60 

 21.87 

 24.30 



26.88 

 29.64 

 33.30 

 36.00 



38.80 

 41.70 

 44.69 



47.77 

 50.95 



2 Inch. 



5.65 

 6.70 

 7.87 

 9.17 



10.61 

 12.18 

 13.90 

 15.77 



17.79 

 19.97 

 22.31 

 24.82 



27.50 

 30.35 

 34.30 

 37.13 



40.07 

 43.11 

 46.25 



49.48 

 52.82 



VOL. VI. 



50 



