alue and scope.

It was hailed as a cure for cancer and other serious conditions, but we
have found that it is not a cure for these ailments. It is, however,
exceedingly valuable in the treatment of certain skin diseases. In
lupus, epithelial tumors, ulcers, papillomata, angiomata and pruritus,
it is being widely and successfully used. It was later discovered that
it can quickly kill disease-producing bacteria. It is also well known
that it will efficiently purify water.

X-Ray Treatment and X-Ray Diagnosis.--Professor Roentgen gave to the
world an exceedingly valuable discovery in the X-Ray. He discovered
that a certain form of electrical energy, when applied in a certain way,
would produce shadows that differentiated between a certain degrees of
opacity. For example, it would, if directed upon the human hand, produce
shadows that clearly indicated whether the substance through which the
rays passed was bone or muscle. The chief value of the X-Rays has been
found to be this property rather than any healing value which has been
attributed to them. The fact that these shadows can be photographed has
rendered them of supreme value in surgery and medicine. Previously it
was essential that the surgeon should depend upon his own diagnosis,
upon what he could learn from his sense of touch and from surrounding
conditions. With the X-Rays at his disposal he can quite eliminate the
personal equation. His pictures are precise and mathematically accurate;
he can prove the truth of his diagnosis before he cuts. We can take
pictures of fractured bones and from what we learn we can immediately
tell how they should be set to attain the very best results. We can
actually tell if there is a stone in the kidney before we subject the
patient to a serious operation. We can actually take pictures of the
stomach at various stages of digestion and tell what disease affects the
individual with a degree of precision that was not possible before the
X-Rays were introduced. These examples only suggest its use. There are a
multiplicity of uses for these as yet unknown rays which have greatly
aided in diagnosis and consequently in successful treatment.

Aseptic Surgery.--The utility of the aseptic principle in surgery was
demonstrated by the Japanese army surgeons during the war with Russia in
1904-1905. Their success in preventing deaths from suppurating wounds
amazed the world. Their method was to discard the use of antiseptics and
to depend up