But let me cease this digression and get back once more to Dore-lyn.

One of the most noted medical achievements on this world consists in the
manner of rendering a person unconscious of pain. The anatomy of a
Dore-lynite is, in general, the same as our anatomy. Their bones are
arranged a little differently and the sections of the backbone have a
quite different formation. When a surgeon of that world wishes to
perform an operation and therefore render the patient unconscious, he
presses the tough cartilagenous part of a section of the backbone with a
screw device fastened to the body of the patient. This simple act
renders the spinal cord insensitive, which condition may be maintained
for hours without injuring the patient. Of course any point above the
screw device is sensitive, and for this reason it is more difficult to
render a person unconscious in the parts about the head.

Many ages ago the world of microbes was laid bare, but not before these
people were masters of the microscope or an instrument serving the same
purposes, although formed on a partly different principle.

These Dore-lynites have brought to light the numerous varieties of
parasite broods that cause fermentations and diseases, both infectious
and otherwise.

A diseased body is looked upon as being in possession of a certain brood
of microbes which are destroyed either by the blood filter or the
"Vaccine bath, or injection." (I know no better name by which to call
it.) A few diseases are treated by doses of medicines given in a manner
similar to the prescription system of our country.