3 68 Proceedings relative to the Accident 
driven into the timber making the tie of the angle, through 
the bevelled end of the hip-rafter, juft without the part where 
the tenon of the latter is received into the mortife of the for- 
mer (a, fig. 8.). Here it was that the fire feemed to have be- 
gun, though neither the holdfaft itfelf, nor the hip-pole refting 
upon it, (hewed any figns of the lightning. From the place into 
which this holdfaft was driven ( a , fig. 8.) to the outer end of the 
angle tie (b, fig. 8.) there was a confiderable lofs of fubftance, 
occafioning a large hole ; but the fides of the hole within were 
fo imooth, and fo little charred, (hewing plainly the grain of 
the wood, that it was fcarcely pofiible to luppofe the whole had 
been burnt out ; we conje6tured, therefore, that a large fplin- 
ter had been forced off by the lightning at this place, and, in 
the fame moment, the tenon of the hip-rafter fet on fire where 
it enters the mortife. Indeed, unlefs fome opening had been 
made by forcing out fuch a piece, it does not appear how the 
fire could have burnt, for want of air, in a part that is always 
to clofely joined by builders : and yet, in this confined place, 
the tenon of the hip-rafter was fo far con fumed, that a ruler 
could bethruft in, almoft to the further extremity of the mor- 
tile. From this (pot the flame feems to have iflued out eaft- 
ward, between the tie of the angle and the wall- plate (c, c, fig. 
8.) lcorching all the timbers it could reach, and fetting fire to 
the laths ; but the mifchief it had done was very trifling (fee 
fig. 8.). 
Juft beneath the abovementioned hole at the end of the 
angle-tie (<£, fig, 8), is the extremity of the wall-plate which lies 
upon the eaftern wall of the eaft flank (</, fig. 8.). The end of 
this wall-plate was rent in a* remarkable manner (*,*,£,r,fig.8.) f 
and leveral of the fiflures were continued fome way upon the 
fides (d andyi fig. 8.). Though the other timbers we have 
i mentioned 
