TABLE XXV. 



THE SOLID OB CUBICAL CONTENT OF STACKS OF A ROUND OR 

 CYLINDRICAL FORM IN SOLID YARDS AND FEET, FROM 6 TO 21 FEET 

 IN HEIGHT, AND FROM 15 TO 82 FEET IN GIRTH OB CIRCUM- 

 FERENCE. 



IN the first three pages of the Table are found the girths from 

 15 to 37 feet ; in the next three pages, the girths from 37J to 59J 

 feet ; and, in the last three pages, the girths from 60 to 82 feet ; 

 these are placed in the left-hand columns of the pages ; the 

 heights from 6 to 21 feet are placed along the top of the other 

 columns ; the solid content is found opposite the given girth, in 

 the column under the given height. 



The girths being given, rising by a half-foot, from 15 to 82 

 feet, are, in ordinary cases, sufficiently minute for any measure- 

 ment ; and, if required, any height may be had, rising by a half- 

 foot from 3 feet to 32J feet, either by taking half the content of 

 one of the heights in the Table, or by adding together the con- 

 tents of two of the heights. Thus, by taking half the content of 

 the numbers in the Table up to 21, the content of heights rising 

 by a half-foot, from 3 to 11 J feet, will be had, by adding the con- 

 ,ent of 6 1 feet to numbers in the Table, the content of heights, 

 rising by a halt-foot from 12| up to 27 J feet will be got, and by 

 adding the content of 11 J to the content of 17 and upwards, the 

 content of heights will be got, rising by a half-foot, from 28 J up 

 to 32J feet high. 



The contents are set down to the nearest fraction of a foot : 

 fractions of a half-foot and under are neglected, and when above 

 a half-foot, they are reckoned 1 . 



The dimensions of a circular stack, 

 such as the figure adjoining, is taken 

 as follows : 



Take the girths at the bottom of 

 the stack and at the eaves a, b, and 

 add the two girths together, the half 

 of the sum is the mean girth ; then 

 take the height from the ground to 

 the eaves at b, and add to it one-third 

 of the perpendicular height from the 

 eaves to the top of the dotted line 



on a level with c, the crown of the stack. When the body of 

 the stack does not taper regularly, girths must be taken in 



