Iridium. (Iridium Metallicum.)

The metal. Ir.

One of the metals of the platinum group, among the heaviest of known substances and almost indestructible.

Introduced by Hering in 1853.

The precipitate made by Genth was triturated by Boericke; one ten thousandth part of it produced a vivid black.

Twenty grains of the 3d trituration were taken by A. J. Tafel when in a state of perfect health. It is the only proving of Iridium and not contained in Allen's Encyclopaedia. All the symptoms were experienced within two hours.

Pain in middle of occipital bone.

A feeling as if the eyes were being affected from below upward.

Feeling of numbness in ears and throughout the body, lasting but a short time.

Pain in left malar bone, a kind of stinging; from this place a kind of warmth spreads over the whole face; the pain is also felt in right malar bone like a pressure.
Feeling as of a triangle in face, the base is formed by the two malar bones, the apex in the vertex.

Increased saliva with sensation in malar bones which is more perceptible on left side.

A transient pain on inner side of wrists, particularly the left, also in bend of knee joint.

Pressing in anterior portion of left thigh in middle of upper half, followed by pressing in groin.
While walking, feeling of tension in both thighs, particularly in left; then a dislocated feeling in left hip joint, and a dull pain tending toward left gluteal region.
Cramp-like contraction in right calf and middle of sole of foot.

While walking: feeling of tension in both thighs.

Right: pain in malar bone; cramp-like contraction in calf.
Left: pain in malar bone; sensation more perceptible in malar bone; transient pain in wrists, agg. left; pressing in anterior portion of thigh; feeling of tension in thigh; dislocated feeling in hip joint; dull pain tending towards gluteal region.
From below upward: eyes affected.

As if the eyes were being affected from below upwards; as of a triangle in face, the base formed by the two malar bones, the apex in the vertex.
Pain: in middle of occipital bones.
Stinging pain: in left malar bone.
Cramp-like contraction: in right calf and middle of sole of foot.
Pressure-like pain: in right malar bone.
Dull pain: tending toward left gluteal region.
Transient pain: on inner side of wrists; in knee joints.
Pressing: in anterior portion of left thigh, in middle of upper half; in groin.
Dislocated feeling: in left hip joint.
Feeling of tension: while walking, in both thighs.
Numbness: in ears and throughout whole body.