OF ARTS AND SCIENCES : FEBRUARY 14, 1865. 



435 



Cast-iron Ifi feet long". 



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

 the respective headings. 



Diameter 

 of Pillar 

 outside. 



Inches. 



2 



21 



21 







H 



5# 



6 



6| 



7 



8f 



9i 



9| 

 10 



li Inch. 



4.09 

 5.18 



6.44 



7.89 



9.53 



11.37 



13.44 

 15.34 

 17.36 

 19.49 



21.73 

 24.06 

 26.48 

 29.00 



31.60 

 34.27 

 37.02 



39.84 



42.73 



45.67 

 48.68 

 51.73 



54.84 

 57.99 

 61.19 

 64.43 

 67.71 



1 1 Inch. 



5.24 



6.54 



8.04 



9.74 



11.66 



13.94 

 15.97 

 18.13 

 20.41 



22.81 

 25.31 

 27.93 

 30.64 



33.45 

 36.35 

 39.33 

 42.39 



45.53 

 48.73 

 52.00 

 55.33 



58.72 

 62.16 

 65.65 

 69.19 



72.77 



li Inch. 



6.60 



8.14 



9.89 



11.88 



14.34 

 16.48 

 18.77 

 21.19 



23.73 

 26.41 

 29.20 

 32.11 



35.11 

 38.22 

 41.43 

 44.72 



48.10 

 51.55 

 55.08 

 58.67 



62.33 

 66.05 

 69.83 

 73.66 

 77.54 



1| Inch. 



8.19 



9.99 

 12.03 



14.66 

 16.90 

 19.29 

 21.84 



24.53 

 27.35 

 30.31 

 33.39 



36.59 

 39.90 

 43.32 

 46.83 



50.44 

 54.14 

 57.91 

 61.77 



65.69 

 69.69 

 73.74 

 77.86 

 82.03 



II Inch. 



10.05 

 12.13 



14.90 

 17.22 

 19.72 

 22.38 



25.19 

 28.16 

 31.27 

 34.52 



37.90 

 41.40 

 45.02 



48.74 



52.57 

 56.50 

 60.52 

 64.62 



68.81 

 73.07 

 77.40 

 81.80 

 86.26 



] I Inch. 



12.18 



15.08 

 17.47 

 20.05 

 22.81 



25.74 

 28.84 

 32.09 

 35.50 



39.04 

 42.72 

 46.53 

 50.46 



54.50 

 58.65 

 62.91 

 67.25 



71.69 

 76.21 

 80.80 

 85.47 

 90.21 



2 Inch. 



15.21 

 17.66 

 20.32 

 23.16 



26.20 

 29.41 

 32.79 

 36.33 



40.04 



43.88 

 47.88 

 52.00 



56.24 

 60.61 

 65.08 

 69.66 



74.34 

 79.11 

 83.96 

 88.90 

 93.91 



