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much the longest, nearly twice the length of the body; the femora furnished with a 
series of prominent hairs, each hooked at the tip: tibia furnished at its basal half 
with a denser row of shorter hairs more curved and more prominently hooked; tarsi 
three-jointed, the basal joint twice as long as the other two together; the second 
joint extremely small and with two long straight hairs at its tip; the terminal joint 
simple and not quite one-half as long as the basal. The hind legs have the femora 
so curved that when opposing each other they form nearly a complete circle, fur- 
nished inside with stout hairs and ending in an obliquely truncated point with afew 
hairs at the tip, and having at the truncated base a finger or process also slightly 
tipped with hairs; the hind tibiw are articulated some distance back of the tip of 
the femora, are slightly curved in the opposite direction, fringed with hairs, and 
having quite a tuft of longer ones arising from the lower middle; the hind tarsi are 
also three-jointed, the basal joint nearly as long as the tibie; the second joint 
small, with three long straight hairs at the tip; the terminal joint simple and about 
one-fifth the length of the basal. Abdominal joints 8-9 and subjoint but slightly 
sutured dorsally, the eighth more bulging, with a stout, shightly curved spine each 
side. Length of body, about one-eighth inch; length from the elbow of the an- 
tenne to the tip of the straightened legs, more than three-eighths of an inch. 
HOMINIVOROUS HABITS OF THE SCREW WORM IN ST. LOUIS. 
By Mary E. MURTFELEDT. 
A remarkable instance of illness from the attack of Serew Worm fly 
was brought tomy notice this summer by a friend, a distinguished and 
successful physician in St. Louis, who, at my request, very kindly gave me 
a detailed account of the case. The subject was a lady who was spend- 
ing the summer on a farm about ten miles from the city. Opposite this 
farm, as the Doctor was particular to mention, was a large sheep pasture 
which had been in use for that purpose for many years. Onedaythislady, 
whom for convenience we will call Mrs. A., was seized with sneezing 
which continued with such constancy and violence, accompanied by 
such peculiar sensations in the anterior nasal passages, that my friend, 
Dr. B., was called to attend her. He could not, however, distinguish 
the symptoms from those of severe influenza, and prescribed accord- 
ingly. On the second and third days he found the patient in greater 
distress, with face, nose, and throat much swollen and intense pain be- 
tween the eyes. 
On the morning of the fourth day Mrs. A.’s husband anpeanel early 
at the doctor’s office, and related with horror that his wife had in 
sneezing expelled from her nose two or three white worms. Upon this 
Dr. B. summoned for consultation and assistance one of the leading — 
surgeons of the city and by the aid of mirrors and other instruments 
discovered a large number of white larvae attached by thei mouth 
hooks to the mucous membrane of all the cavities of which the physi- 
cians could obtain a view. Forceps and tweezers were brought into 
requisition and, with much difficulty, 25 or 30 of the larvae were ex- 
tracted. Spraying with chloroform and carbolized fluids had no effect 
to make them loosen their hold. Indeed, upon disturbance they would 
contract so as to almost bury themselves in the inflamed and bleeding 
