(II©) 
Explication of the Figures', 
W Hereasthe brevityof an ha% 
Writing hath made me deliver 
fotne things lefs ciear!y,efpecf« 
ally where I fpeak of Angular 
Bodies and the Beds of the Earth j I have, for 
feme more clearnefs, annexed here a few Fi¬ 
gures chofen out of many. 
The thirteen fit&Egmes^defigmd to explain 
the (Singular Bodies ofChryftaljare reducible 
CO two . 
The firfi contains [even differences of a 
Plane, sn which is che Axis of the Chryftaf In 
the It. id. and ^d) the axes of che parts,out of 
which the body of the Chryftal is compofed do 
conftitute One ftraight line, but by an interme¬ 
diate column,which in the xfi figure is wanting, 
but is feen fhorter in che 2d, and longer in the 
3d. In the s^ih figure the axes of the parts con- 
liituting the body of the Chryfial. do not make 
one ftraight line. The %th and 6th figure are of 
the kind of thofe,o£ which I could have produ¬ 
ced innumerable,to evince, chat in the Plane of 
the both che number and length of the fines 
are varioufly changed without change in the 
angles,and that in the very raidftof theChryftal 
there are left various cavities, & formed various 
plates. The 7ih figure doth fhew in the plane of 
the axCy how from the new Chryftallin matter 
laid upon the planes of the pyramids, both the 
number and length of the ifides are varioufly 
fometimes increafed, foraecimes kffen’d. 
