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"a poisonous plant, monk's-hood, wolf's-bane."-Whitney, 1902

Aconite

"a poisonous plant, monk's-hood, wolf's-bane."-Whitney, 1902

An apple blossom, just right to spray for coddling moth.

Apple blossom

An apple blossom, just right to spray for coddling moth.

A young apple blossom beginning to grow, almost too late to spray for coddling moth.

Growing apple

A young apple blossom beginning to grow, almost too late to spray for coddling moth.

Also known as Amanita phalloides. A deathly poisonous fungus found in Europe.

Death Cup

Also known as Amanita phalloides. A deathly poisonous fungus found in Europe.

A biennial herb native to Europe. Its leaves and flowers are poisonous to humans and some animals.

Purple Foxglove

A biennial herb native to Europe. Its leaves and flowers are poisonous to humans and some animals.

Also know as cicuta maculata. This plant is native to temperate areas of the Northern Hemisphere, and is identified by having small green or white flowers hanging in an umbrella shape. It is considered one of America's most toxic plants to humans.

American Water Hemlock

Also know as cicuta maculata. This plant is native to temperate areas of the Northern Hemisphere, and…

Also known as Rhus radicans or rhus toxicodendron. The leaves of this plant produces urushiol, which causes an itching rash to anyone who touches it.

Poison Ivy

Also known as Rhus radicans or rhus toxicodendron. The leaves of this plant produces urushiol, which…

An illustration of a jimson weed.

Jimson weed

An illustration of a jimson weed.

This illustration shows how putrefying animal matters from a leaky drain and an overflowing cess-pool soak diagonally into the well and contaminate the well-water, which is pumped up and used by the family without, perhaps, a thought of danger from this terrible sanitary defect.

Leaky Drain

This illustration shows how putrefying animal matters from a leaky drain and an overflowing cess-pool…

Also known as Podophyllum peltatum. They generally reach 2 inches in height, and have 2-3 umbrella-like leaves. The leaves and roots of this plant are poisonous when consumed in large quantities.

Mayapple

Also known as Podophyllum peltatum. They generally reach 2 inches in height, and have 2-3 umbrella-like…

A genus of poisonous plants. It is commonly found in wet places including streamsides and ditches.

Oenanthe Crocota

A genus of poisonous plants. It is commonly found in wet places including streamsides and ditches.

This bottle was intended to hold poison. Poisons are substances that can cause disturbances to organisms, usually by chemical reaction.

Four Sided Poison Bottle

This bottle was intended to hold poison. Poisons are substances that can cause disturbances to organisms,…

An illustration of poison hemlock.

Poison hemlock

An illustration of poison hemlock.

An illustration of poison ivy.

Poison ivy

An illustration of poison ivy.

An illustration of poke weed.

Poke weed

An illustration of poke weed.

A dense shrub with evergreen leaves and purple flowers, and is used as an ornamental plant. Honey produced with the pollen of the flowers of this plant have been known to be poisonous to human consumption. It is commonly found in Asia.

Rhododendron Ponticum

A dense shrub with evergreen leaves and purple flowers, and is used as an ornamental plant. Honey produced…

"The stomach pump injects liquid into a poisoned person's stomach and then withdraws the liquid and poison mixture. Bulbs C and D contain valves that open and close depending if B is upright or inverted." —Quackenbos 1859

Stomach Pump

"The stomach pump injects liquid into a poisoned person's stomach and then withdraws the liquid and…

<i>Latrodectus mactans</i>. Spiders are "dimerosomatous - that is, have the body divided into two principal regions, the cephalothorax, or head and chest together, and the abdomen, which is generally tumid or globose...In those species which are poisonous the falces are traversed by the duct of a venom-gland." &mdash;Whitney, 1889

Female Black Widow Spider with a View of the Under Side of the Abdomen

Latrodectus mactans. Spiders are "dimerosomatous - that is, have the body divided into two principal…

An illustration of a poison sumac.

Poison Sumac

An illustration of a poison sumac.

Also known as Rhus vernix. It is a woody shrub or small trees that can cause skin irritation when touched. When burned, inhalation of the smoke may cause a rash to appear on the lungs.

Poison Sumac

Also known as Rhus vernix. It is a woody shrub or small trees that can cause skin irritation when touched.…

Section of the head of a serpent. a, poison fangs; b, poison glands; c, conductor for the poison; d, muscles of the jaws; e, tendon of the muscles; s, salivary glands.

Cross section of a viper head

Section of the head of a serpent. a, poison fangs; b, poison glands; c, conductor for the poison; d,…

The common European viper feeds on a small quadrupeds and reptiles. Its bite is venemous, but not usually fatal to humans.

Common European viper

The common European viper feeds on a small quadrupeds and reptiles. Its bite is venemous, but not usually…

An illustration of water hemlock including the root and fruit.

Water hemlock

An illustration of water hemlock including the root and fruit.

An illustration of woolly locoweed.

Woolly locoweed

An illustration of woolly locoweed.