‘28 
ROYAL SOCIETY. 
according to their manner upon these extra¬ 
ordinary concretions, see what the most 
industrious, and knowing Mr. Hook, Cura¬ 
tor of this Royal Society, has with no lesse 
reason, ])ut more succinctnesse, observ’d 
from a late microscopical examen of anoth¬ 
er piece of petrifi'd wood; the description 
and ingenuity whereof cannot but gratifie 
the curious ; who will by this instance, not 
onely be instructed how to make inquiries 
upon the like occasion; but see also with 
what accuratenesse the Society constantly 
proceeds in all their experiments; and with 
what candour they relate and communicate 
them. 
^ It resembl’d wood, in that 
First, all the parts of the petrifi’d sub¬ 
stance seem’d not at all dislocated, or 
alter’d from their natural position whiles 
they were w ood; but the w hole piece re¬ 
tain’d the exact shape of wood, having 
many of the conspicuous pores of wood 
still remaining pores, and shewiiig a mani¬ 
fest difference visible enough between the 
grain of the wood and that of the bark; 
especially, when any side of it was cut 
