226 PRURIGO. 
Wash for Mange. 
Corrosive sublimate . . . . . .. . . . . . . One drachm. 
Spirits of wine . . . . © } 6 4 -= gb. «= Oneounce: 
Tobacco (niade into an anieeicey is - . . One ounce. 
Hot water (which is to be poured into the Sea . . One quart. 
Dissolve the corrosive sublimate in the spirits of wine. Soak the tobacco in 
the boiling water. When cold, mix. 
The question has been much debated, “whether man can derive the 
itch from an animal?” Imaginary proofs favoring the possibility are 
every now and then confidently promulgated; but all doubts seem to 
have been put to rest by the investigations conducted by M. Bourguig- 
non. That gentleman demonstrated the unfitness of one creature to 
support the parasite generated by another. Horses may be violently 
irritated by insects bred by fowls; but, remove the birds, the supply 
ceases, and the irritation dies away. So an individual handling mangy 
horses may get some of the acari upon him and cause vexatious itching; 
but let the man keep away from the contaminated stable and the sensa- 
tion is quickly lost. The repeated and repeated renewal of the pest 
gives a seeming warranty to the popular belief. Certain disorders 
assuredly are communicable throughout every species of life, as though 
to prove to the stubbornness of mankind that all nature is akin. Such 
are hydrophobia in the dog, and glanders in the horse; were all affec- 
tions, however, equally interchangeable, the inhabitants of this world 
would speedily become one breathing mass of disease. 
PRURIGO. 
This affection may lead many a gentleman to imagine his horse has 
caught the mange; the lead- 
ing symptom in each disorder 
is the same. Excessive irrita- 
bility of the skin is, in prurigo, 
generally exhibited during the 
spring of the year; the animal 
will rub itself with a fury which 
often removes portions of the 
coat, but which never exposes the 
dry and corrugated patches that 
characterize genuine mange. 
It is very annoying to behold 
the horse, when in the stable, scrubbing its neck upon the division to the 
stall; it is provoking to witness the animal leave its corn for the same 
THE PROOF OF PRURIGO. 
