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in the Manner we fee them in the Fradlure of that 
Bone, the Caufe of it hath juftly been aferibed to 
the Power and A 61 ion of the Mnfcies upon it in a 
morbid State of that Bone, which difpofing it to a 
Fradlure when that Power is ftrongly applied, and af- 
fedling both Knee-pans in a like manner, foon brings 
about a Fradlure alfo of the oppofite Bone, then ap- 
pearing as throughly found as the fradlured Part be- 
fore was thought to have been. Many Inftances 
might be given of the Fradlure of the Patella in Per- 
fons throughly found, where the Part itfelf had re- 
ceived no Hurt whatever : Which feems to imply, that 
the Caufe of it was to be aferibed to the Mufcles 
only; and the rather, that many Inftances may be 
given of the Fradlure in the Neck of the Os Femoris, 
in the Middle of the Humerus , Tibia, and Per one, by 
the Power of the Mufcles only, or fuch Power of 
them as fufficicntly fhew'd they have as great a Share 
in feveral Fradlurcs aferibed to outward Caufes, as 
they are frequently known to have in the Fradlure of 
the Tmdo Achillis. However, as the Fradlures oc- 
cafion’d by the Adtion of the Mufcles are cured by 
the fame Remedies as are effedlually applied to the 
Cure of others from outward Caufes, they deferve 
no further Notice. I fhall give fome Inftances of 
fuch in which the Bones themfelves are morbid. 
Upon the 15th Day of July 1738. I was fent for 
to a middle-aged Gentlewoman in my Neighbour- 
hood, of a feemingly ftrong Conftitution, rather fat 
than lean, who had broke her Right Arm in the 
Middle, while with her two Hands fhe was endea- 
vouring to bring together the Ends of a Piece of 
Tape. The Standers-by heard the Bone fnap, and 
were 
