AND FAMILY DISPENSATORY,. 67 
luxation might happen, caufing exceeding great pains ; as in hard labour it now 
fometimes happens. — . el J 
"The os ianominatum, the hoop-bone, or flank-bone, confifts of three bones, viz. 
os ilinm, os ifcbion, and os pubis, all which are joined together by griftles till about 
the feventh year: afterwards, efpecially in thofe of ripe years, the cartilages being 
dried, they feem to be but one bone. Thefe three bones, together with the os facrum, 
make that cavity which is called pelvis, the bafon or bowl, which is bigger ina wo- 
man than in a man, that the womb of a woman with child may the better reft upon it; 
In hard labour the fhare-bone, or os pubis, and the os facrum, will part, the car- 
tilages and ligaments (being bedewed with faperfuous humidity) giving way. 4. 
Os ilium, the huckle-bone, fo called becaufe it contains the gut ilium, is the firft 
part, the highelt, the broadeft, and the greateft, in figure femi-circular, arched with- 
out and hollow within : the femi-circle is called /pina, the arched part dorfum, and the 
hollow part cofta.. 2. Os pubis, the fhare-bone, is feated in the fore-part ; and is 
parted in the middle by a cartilage not very hard: it is joined to the bone of the 
‘other fide by fyncondrofis, which in women is twice as thick and as wide as in men, 
that thefe bones in child-bearing may not be luxated or disjointed, but only loofened 
and made wide for the coming forth of the child. 3. Os i/ebion, the hip-Bone, is the 
‘lower and more outward part, wherein is a large anddeepcavity, called acetabulum, 
the faucer, or pixis, the box, which receives the large head of the thigh-bone: the 
cartilaginous procefs of this cavity is called fupercillum, the brow. ‘Phe conendix 
is placed between the huckle and fhare-bones, and is knit to the os facrum by a 
double ligament the one is inférted into the fharp procefs of the hip; the other bet 
hind,-into its appendix, that the inteftinum rectam and its mufcles may be fuftained, 
- The cofe, or ribs, in figure refemble a bow, or fegment of a circle; their original 
from the vertebra is narrower and rounder, growing broader as they come to the — 
breaft: in their upper fides they are blunt and thick in their under part harp and 
‘thin: the uppermoft ribs are more crooked and thorter 5 the middlemoft are longer 
and broader ; the lower are cut again fhorter. Their fubltance is partly cartilaginous, 
and partly boney, the boney part being towards the vertebre, where they are furs 
nifhed with two little apophyfes or knobs: the firit of which is articulated with the 
hollow of the vertebre : the fecond is joined to the tranfverle procefs of thevertebre? 
but the five lower ribs by a fimpleknob. The number of the ribs are twelveton 
each fide : feldom thirteen, more rarely eleven: and, when they are fo found, you 
_ May account their numbers either fupernumerary or deficient. They are.cwosfi 
-vizweither legitimate and true, or illegitimate and falfe. . The true or legit 
the feven upper ribs, becaule they touch the breaft-bone by their length, and ma 
HOLIERA ; : 3 pee se 
