Geometrical
angular
mundics.
tip } . Ni A T * ^ R 'A L & H I Ï Ö R Y
M s v iflvftssgfl in-
Lhuyd’s LithopWkcium, N°. i ;22, vêfy ■ likè';‘ttós Tpeeimeti; of
wHicV H& ódlsHkfto^^Uuë^fu^um
fflilotituni; 'Glujti, nófitiïMl1 referent ex1 lapicidiha Cowléiam ( T hefe
aié T jtëv eeS # Witk. •’ ;
^'TFig/ïkxty. in ^ëpeiadiiélarj^capillary tubes*
böffi fbrfaÊé and textuïefmooth, of adinereöus ftad-Coloüri‘> •
x x x v i A cinefeöus,ftilktiüöusy' tubulary mufidic*; the ; pipes ö f
different diameter and lengths, and in regard to one another parallel
^ th e pipes ö fM oigain. f ‘<3$ jP « ••'*.’ §j|®
- 'xxXVl. On the furface, thin Wëd^ës* acuminated, ias i f fm£ll bits’
óf a knife- 01‘ fivord, not parallel* but with their edges tüftied upwards,
ftahdiiig out o f the bed. :
’ ' xxxvn. Afhopt of mundic, columnar, the bafe at ƒ, s,a^hombus,s
but at ^ tfie fide'angles are planed off, . fo u£ip^&njik&' &o column
there hexagonal. O f plate-mundifeH 1
; xxxviii.- ;A rhomhó-columnar clürnp o f plate^üitifidfe. • T h e Columns
make different angles at their infertiotf;’ thé Mfeaóhènabus^
Which in one placé has its ridge pktaed óf|°é|°it^| !iÊ? tïféfóre-
going figure.
' x x x ix . A rhomboiikl Angle die óf mundic, pale bréfs-éölöured^
xl. A ólump of intimately conneéted cubical mundic*' rpolifhed,
brafs-coloured.
xi.i. Two cubes of mundic inferred in tódh’ öthet’syïbbftance,
therefore fhot at the fame time, but by' forces differently directed^
N .B . Where equally immerfed, and of equal dimenfions^the
forces and materials were equal.
XLii. A perfeét cube of mundic* df burnifhëd btak-éolour. p
5 - 3Ó111. A polyhedron; its fiirface confifting o f thirteen pentagonal
planes.
XLiv. The fiirface is divided into twenty triangular - planes, five
of which make a pentahedral ciJfpis at one end, and five make the
like cufpis at the oppofite extremity, the other ten triangles corn-
pleat the fpace or fillet betwixt the two cüfpides-; a molt - remarkable
polyhedron this, and perhaps as' curious a difpofition of triangles
as is any where to be met with. , Brafs-coloured.
xlv. A bunch of mundic rhombus’s with thdir points planed off.
x tvi. Another view of the knie fiibjeét, 'fhewing thè front of
the chief rhombus, as a. v
xLvn. An exad; equilateral triangular fide of a mundic pyramid
with a fmall one o f the like figure - On each fide, in different
dhedHons.
• xLvin. One grain of mundfe; its fides and ends cut in the feg-
ment of d circle* and convex in the front,
Fig.