wders" containing arsenic, has been the means of poisoning
many animals. This is the common poison used by malicious persons with
criminal intent. The poison may also be absorbed through wounds or through
the skin if used as a dip or bath.

If a large dose is given, at once acute poisoning is produced; if repeated
small doses are given, chronic poisoning may result. The poisonous dose for
an ox is from 3 drams to 1 ounce.

_Symptoms._--The symptoms of acute poisoning first appear as those of
colic; the animal is restless, stamping with the feet, lying down and
getting up. There is tenderness on pressure over the abdomen. The acute
symptoms increase; in a few hours violent diarrhea is developed; in many
cases blood and shreds of detached mucous membrane are mixed with the
evacuations. There is irregular and feeble pulse and respiration, and death
is likely to supervene between the eighteenth hour and the third day. If
the latter period is passed, there is a reasonable hope of recovery.

In chronic poisoning the symptoms are similar to those of chronic
gastrointestinal catarrh, with indigestion, diarrhea, and general weakness
and loss of condition.

_Treatment._--The antidote for arsenic is a solution of hydrated oxid of
iron in water. It should be prepared fresh by mixing a solution of sulphate
of iron, made by dissolving 4 ounces of sulphate of iron in one-half pint
water, with a suspension of 1 ounce of magnesia in one-half pint water.
This quantity is sufficient for one dose for a cow and may be repeated in
an hour, if much arsenic was taken. A solution of calcined magnesia or
powdered iron or iron filings or iron scale from a blacksmith's forge may
be given in the absence of other remedies. Powdered sulphur is of some
value as an antidote. One must also administer protectives, such as linseed
tea, barley water, whites of eggs, etc.

LEAD POISONING.

Lead poisoning of cattle sometimes comes from their having licked freshly
painted surfaces and thus swallowed compounds containing white lead. In
several instances cattle have been poisoned by silage from a silo painted
inside with lead paint shortly before filling. Sometimes cattle eat dried
paint scrapings with apparent relish and are poisoned. Cattle grazing on
rifle ranges have been poisoned by lead from the bullets. Sugar of lead has
been administered by mistake for Glauber's salt. Lead poisoning may be
acute or chronic. The fatal dose of sugar of lead is from