registered by the instrument. The analogy between the response of the
metal and that of the living muscle was startling. For instance, just
as in the case of the living animal muscle or nerve matter, the
response becomes fatigued, so in the case of the metal the curve
registered by the needle became fainter and still fainter, as the bar
became more and more fatigued by the continued irritation. And again,
just after such fatigue the muscle would become rested, and would again
respond actively, so would the metal when given a chance to recuperate.

Tetanus due to shocks constantly repeated, was caused and recovered.
Metals recorded evidences of fatigue. Drugs caused identical effects on
metals and animals--some exciting; some depressing; some killing. Some
poisonous chemicals killed pieces of metal, rendering them immobile and
therefore incapable of registering records on the apparatus. In some
cases antidotes were promptly administered, and saved the life of the
metal.

Prof. Bose also conducted experiments on plants in the same way. Pieces
of vegetable matter were found to be capable of stimulation, fatigue,
excitement, depression, poison. Mrs. Annie Besant, who witnessed some
of these experiments in Calcutta, has written as follows regarding the
experiments on plant life: "There is something rather pathetic in
seeing the way in which the tiny spot of light which records the pulses
in the plant, travels in ever weaker and weaker curves, when the plant
is under the influence of poison, then falls into a final despairing
straight line, and--stops. One feels as though a murder has been
committed--as indeed it has."

In one of Prof. Bose's public experiments he clearly demonstrated that
a bar of iron was fully as sensitive as the human body, and that it