Exploration of Kent's Cavern, vetaemombas 377 
he following 3 is the method of ee which has been 
observed from the commencement, and which it is believed af- 
fords a simple and airredh method of Se oe the exact po- 
sino of every object which has been found. 
he black soil accessible pena ‘the masses of limestone 
on the surface was carefully examined and d. 
2d. The limestone blocks oceupying the ase of the depos- 
its were blasted and otherwise broken up, and taken out of the 
avern. 
3d. A line, termed the “datum line,” is stretched horizontally 
from a fixed point at the entrance to another at the back of the 
chamber 
4th. Lin nes, one foot a are drawn at right angles to the 
datum line, and therefore parallel to one another, across the 
chamber so as to divide thesurface of the deposit into belts 
an “‘»arallels.” 
th. In each parallel the black mould which the limestone 
masses had covered is first examined and removed, and then the 
Pha balan breccia, so as to lay bare the surface of the cave- 
eart 
6th. irae e981 lines, a foot apart, are ddeen drawn from side 
to side across the ertical face of the section so as to divide the 
parallel into four jad ers or “ levels,” each a dee 
inally, each level is oe into 0 lengths, led ‘ ‘yards, 4 
zontal prisms three feet long and a foot square in the sectio wt 80 
that each contains three cubic feet of materia 
This material, after being carefully examined tn situ b 
dlelight, is taken to the doorway and reéxamined by daylight, 
after which it is at once removed without the cavern. A box 
msc to each yard exclusively, and in it are geen all 
€ objects of interest which the prism yields. The boxes, 
