Part of a leaflet produced by the British Anti-Vivisection Association
PO Box 82, Kingswood, Bristol BS15 1YF.

There are endless possibilities for producing irrefutable evidence in support of any theory, through the use of various animal species; all one has to do is to select the appropriate species.

    Do you want to prove that the amanita is by no means a deadly mushroom, but rather a delicacy fit for humans?
    Just feed it to a rabbit, morning, noon and night. He will thrive on it.

    Do you want to ruin the citrus fruit growers?
    Then feed their lemons to cats, who die from too much vitamin C.

    Do we wish to prove that prussic acid, the mere smell of which can kill a human being, makes a fine aperitif?
    Then let's feed it to toads and sheep.

    Do we want to stop cooks from using parsley?
    Let's give it to the parrot, and you will find him stone dead the next morning.

    Or do we want penicillin to disappear from all drugstore counters?
    Let's give guinea-pigs a taste of it, and they will promptly die from it.

    The amount of opium a porcupine can actually swallow in one lump with no trouble at all would keep a human addict groggy for two weeks if he just smoked it, let alone what it would do to him if he just swallowed it.

    To convince consumers that botulin is harmless, just add a bit of this poison to some cat-food. The cat will lick its lips.
    But the cat's traditional game, the mouse, will die from it as if struck by lightning.

    Moonshiners are responsible for blinding thousands of people, owing to the methyl-alcohol in their booze.
    But this same methyl-alcohol doesn't affect the eyes of most laboratory animals.

    Arsenic is supposed to be poisonous? That is a pure invention of the crime writers. The proof?
    Sheep can tolerate a considerable quantity of arsenic. 

    Does your pussycat have the sniffles?
    Be sure not to give her any aspirin unless, of course, you want to kill her.

    Are you asked to demonstrate the uselessness of vitamin C? Then remove it entirely from the diet of some animal that's close at hand - a dog, cat, rat, mouse, hamster. They will nevertheless stay healthy, because their organisms produce their own vitamin C.
    But we may not withhold it from guinea-pigs, primates, or humans. Deprived of all vitamin C they would eventually all die from scurvy.

    One hundred milligrams of scopalamine leaves dogs and cats unaffected.
    But five milligrams are sufficient to kill a human being.

    Strychnine, as popular among the murderers in detective stories as arsenic.
    It has no effect at all on guinea-pigs, chickens, or monkeys, not even in a dosage which would put a whole human family into convulsions.

    Hemlock, well-known through the death of Socrates, is dangerous because of its similarity to parsley.
    But is eaten with great relish by goats, sheep, and horses.

    Amylnitrate dangerously raises the internal pressure of the eyes of a dog, but lowers the pressure within the human eye.

    The foxglove (digitalis) was formerly considered to be dangerous for the heart because, when tested on dogs, it raised their blood-pressure. For this reason the use of this medicament, which is of undisputed value for the human heart, was delayed by many years.

    Novalgin is an anaesthetic for humans, but in cats it causes excitement and salivation, similar to what occurs in animals suffering from rabies.

    Cycloserin is used for tuberculosis patients, but has no effect on guinea-pigs and rats which have been made tuberculous artificially.

    The anti-inflammatory Phenyl-butazone can be administered to dogs and other animals in high doses, for it quickly loses its effect in their bodies. But if similar doses were given to humans, poisoning would soon set in, because this medicament needs 100 to 150 times longer to become inactive and checked in its effects.

    Chloramphenicol often seriously damages the blood-producing bone marrow of humans, but not the marrow of animals.

    Acidium oroticum has a healing influence on the human liver, but causes fattiness in the liver of rats. Chlorpromazine damages the human liver, but not the livers of laboratory animals.

    Methyl fluoroacetate has a toxic effect on mammals, but the rat can tolerate a dosage forty times higher than the dose that kills a dog. And man? Will he react like a rat, or a dog? Or neither? In a nutshell, one only needs to find the appropriate animal species to obtain the desired answer; black or white, positive or negative. You name it, they will get it.

That is a kind of elastic, malleable science, like the dough we mould in the kitchen. But it is tragic that some would have us believe that they can manufacture human health in the same way.

Even if you are no expert, no specialist, it should not be difficult to draw a conclusion of fundamental importance from the examples we just quoted. If animals react in such a different way from human beings, how can one test on them medications that are intended for us?