REPORTS OF CASES. 
43 
pain and threatening to go down, occasionally knuckling with 
one foot, oftener the right one. 
As he had been np in the stable the day previous, I sus¬ 
pected a light azoturia affecting the fore quarters. Bedding 
was thrown under him, when he voided his urine voluntarily, 
and its appearance (clear and light yellow) disposed of the 
azoturia diagnosis. 
I gave at once i ounce bromide of potassium and 2 drams 
fluid ext. cannabis indica, to allay pain and irritability, know¬ 
ing I had some form of spinal irritation to deal with. When he 
had quieted down somewhat, I began to move him up and down 
to study symptoms, and made out a partial loss of function in 
the extensors of the forearm and foot—a veritable “ wrist drop.” 
Could it be a local myelitis, or was it paresis due to some 
ptomains absorbed from the alimentary canal? I couldn’t de¬ 
cide, but could find no suspicion of lead poisoning in the history 
of the case. 
I combined potassium iodide with the bromide, adding 
jaborandi, and kept this up in divided doses hourly during the 
afternoon, after which he was removed to my hospital. He fell 
to his knees several times on the way, but would place his hind 
feet well under him, rise up and plant his front feet on the 
ground. The pain abated, but the paralysis increased. 
The muscles involved (the four extensors) are supplied with 
nerve force from the musculo-spinal or radial nerve. This nerve 
derives its roots from the first dorsal chiefly, which emerges be¬ 
hind the first dorsal vertebra near the head of the second rib, 
passes outward around the first rib to join the brachial plexus. 
Some injury must have occurred to this nerve at or near its 
emergence from the spinal canal, or to that portion of the cord 
from which it arises. 
This injury, possibly a sprain of the intervertebral liga¬ 
ments or transversalis muscle, would be attended by swelling 
and pressure and possibly a blood clot. The paralysis was alike 
on both sides except as to degree, being more pronounced on 
the right side. 
I kept the patient upon the iodide and jaborandi, supple¬ 
mented with one-grain doses of pilocarpin, hypodermically, 
twice daily, for several days, when the pilocarpin was dropped 
and nux vomica in stiff doses added to the mixture above-men¬ 
tioned. 
About this time (the third or fourth day) I noticed a sore¬ 
ness upon pressure over the vertebrae at the base of the neck, 
