XXVIU EXAMPLES TO THE SECOND SERIES. 
If the Scantlings be required which break with 4 times the suspended 
weight, the same are found by the Second Series of Tables. 
For Red Pine, 86 cwts. is the tabular weight ; and the following are 
the scantlings for 16 feet long; viz. : — 
10X14; llXlli; 12X10; 12^X9; 13X8i; 13iX8; 14X7i; 
14JX6J; 15X6i; 151 X5|; 16X5*. 
The deflections are given by the same tables. 
To find the Scantlings of any Species of Timber sufficient to carry a 
weight vjhich shall be any given portion of the breaking tveight, 
WHEN THE TIMBER PEOJECTS WITH ONE END HORIZONTALLY FROM A 
WALL. 
Weight uniformly loaded. 
The deflection of a joist or beam projecting with one end horizon- 
tally from a wall, with a given weight uniformly loaded, is 19-2 times 
the deflection of the same joist or beam supported at each end and uni- 
formly loaded with the same weight ; and the strength in the former 
position is to that in the latter as 1 is to 4. 
For Red Pine, one-half of the breaking weight uniformly loaded, is 
the tabular weight in the Second Series of Tables. 
Example 14. — Required the Scantlings of Red Pine, of any projec- 
tion, sufficient to support 8 cwts. uniformly loaded ; the scantlmgs to 
break with 10 times that weight. 
10 X 8 
— - — = 40 cwts. is the tabular weight ; in the Second Series of 
Tables, the Scantlings for 2 feet, 3 feet, and 4 feet projections, are as 
foUow, viz. : — 
Length or 
Projection, 
in feet. 
Scantlings by the Second Series of Tables. 
2 
3X9; 
4X5; 5X3^; 6 X 2^. 
3 
4X8; 
5X5; 6X3*; 7X2*; 8X2, 
4 
4X10; 
5X6*; 5iX5*; 6X4*; 7X3*; 8X2*; 9X2 
