TABLE OF CONTENTS. 
xi 
Table of Constants, No. 3, — By which, and the Third Series of 
Tables, may be found the Scantlings of various species of 
Timber, to have the same Strength or Deflection as Red 
Pine, when acted upon by two forces, viz., one in the direction 
of the depth, the other in the direction of the breadth 96 
THIRD SERIES OF TABLES, 
By which may be found the Scanthngs of any species of Timber, 
sufficient to have any given deflections, when acted upon by 
two forces P and Q ; viz., P in the direction of the depth, Q 
in the direction of the breadth; the deflections each way of 
the timber being equal. — 
Table I. Q = -IGP. ... = -400 98 
Depth 
Table 11. Q = -25 P. ... » = -500 102 
Table III. Q = -36 P. ... « = -600 106 
Table IV. Q = -SOP. ... „ = -707 110 
Table V. Q = -75 P. ... „ — -866 114 
Table VI. Q = P. ... » = I'OOO 118 
MISCELLANEOUS TABLES, &c. 
Table I. By which may be found the Scantlings of Red Pine 
sufficient to carry, when loaded, any given portion 
of the breaking weight 124 
Table II. Deflection of Red Pine Scantlings of any breadth, 
when uniformly loaded with one-fourth of the break- 
ing weight 128 
