[ 570 1 
4. Chrifttam a Steenvelt cfiffertatio, de Ulcere 
Derminofo ad Clayiffimum virum GoJefric/um 
Bidloo. Lugd. Bat* afud Jordanum Luchmans. 
16 ^y. in 40- p2g. 24. 
'^Y^He Author, who was Surgeon to the Hofpital in 
1 Leyderr^ recites in this fmall Treatife, a very ex- 
traoi*dinary cafe, viz. Mary Bulte a Maid of 48 years 
and, healthy, fell down twelve Stairs, and broke her 
Lef t leg tiiree inches above the Ankle, io that the tibia 
Bone ■came out of the Skin above an Inch,the parts being 
very much in pain. The Wound was dilated. Bone fet, 
and a proper bandage applied. Many pieces of Bones of 
fevei^al magnitudes came trom the Wound, which are 
here figured... There was, like wife cane taken to pre- 
vent a gangrene.' Five weeks after the fracture appear- 
ed an Ulcer about the prominent part of the Ankle, 
from whence iffued matter. This Ulcer was healed, 
and 15 days after brcdce open airefti, after they thought 
the cure perkft, and. in the botttora of the Ulcer they 
faw 50 Worms li^^e, move and grow. Thefe put into 
a Box in a warmplacexhangedintoChryfaliss in 6 days, 
and the Authors Servant cheriftiing them after 14 days 
longer they turned inro Flies. ' The Author propofes 
it as a queftion, wher:h;^r thefe Eggs had been laid or 
depofited in theUlcer after the hurt, or brought thither 
by the Mafs of Blood.He recites the opinions of learned 
men, concerning thefe wormy Ulcers,both Ancient and 
Modern, and thinks they cannot be produced of putrid 
matter, but that they come from Eggs wherein 
are the Lineaments of the Body to be produced. He 
tells us , Ducks and other Water-Fowl , wifh 
their Wings and Feathers carry Eggs of Fi(h to ponds, 
where 
