OF ARTS AND SCIENCES : FEBRUARY 14, 1865. 



461 



Cast-iron 25 feet long: 



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

 the respective headings. 



Diameter 

 of t'illar 

 outside. 



Inches. 



2 



^ 



3 



H 



4 



4f 





6i 

 6f 



71 

 71 



'2- 

 73 



8 



8J 



9i 



9f 

 10 



\\ Inch. 



1.17 

 1.49 



1.85 

 2.27 

 2.74 

 3.26 



3.85 

 4.51 

 5.22 

 6.01 



6.86 

 7.79 

 8.79 

 9.86 



11.02 

 12.25 

 13.56 

 14.96 



16.44 



18.01 

 19.67 

 21.42 



23.26 

 25.20 

 27.23 

 29.36 

 31.39 



If Inch. 



1.50 



1.88 

 2.31 

 2.80 

 3.35 



3.97 

 4.65 

 5.41 

 6.23 



7.14 



8.12 



9.18 



10.32 



11.55 



12.86 

 14.26 

 15.76 



17.34 



19.02 

 20.80 

 22.68 



24.65 

 26.73 

 28.92 

 31.20 

 33.60 



1^ Inch. 



1.89 

 2.34 

 2.84 

 3.41 



4.05 

 4.76 

 5.55 

 6.42 



7.36 



8.39 



9.51 



10.71 



12.01 

 13.39 



14.88 

 16.46 



18.14 

 19.92 

 21.81 

 23.81 



25.91 

 28.12 

 30.45 

 32.89 

 35.45 



1| Inch. 



2.35 



2.87 

 3.45 



4.11 



4.85 

 5.66 

 6.56 



7.55 



8.62 



9.78 



11.04 



12.40 

 13.85 

 15.41 

 17.07 



18.84 

 20.72 

 22.71 



24.82 



27.04 

 29.38' 

 31.84 

 34.42 

 37.13 



\\ Inch. 



2.88 

 3.48 



4.16 

 4.91 

 5.75 

 6.67 



7.69 



8.80 



10.01 



11.32 



12.73 

 14.24 



15.87 

 17.60 



19.46 

 21.42 

 23.51 

 25.72 



28.05 

 30.51 

 33.09 

 35.81 

 38.67 



15 Inch. 



3.50 



4.18 

 4.95 

 5.81 

 6.76 



7.80 



8.95 



10.19 



11.54 



13.00 

 14.57 

 16.26 

 18.06 



19.99 

 22.04 

 24.21 

 26.51 



28.95 

 31.52 

 34.22 

 37.07 

 40.06 



2 Inch. 



4.20 

 4.98 



5.85 

 6.82 



7.89 



9.06 



10.34 



11.72 



13.23 



14.85 

 16.59 

 18.45 



20.45 

 22.57 

 24.82 

 27.21 



29.74 

 32.42 

 35.23 

 38.20 

 41.31 



VOL. VI. 



51 



