ttempting to transfer cancers from
one animal to another, only one variety of tumor with the microscopic
appearance of cancer--the so-called Jensen's tumor of mice--has yet been
found which can be transferred from one animal to another.

So we may absolutely disabuse our minds of the fear which some of our
enthusiastic believers in the parasitic theory of cancer have done much
to foster, that there is any danger of cancer "spreading," like an
infectious disease. Disastrous and gruesome as are the conditions
produced by this disease, they are absolutely free from danger to those
living with or caring for the unfortunate victim. In the hundreds of
thousands of cases of cancers which have been treated, in private
practice, in general hospitals, and in hospitals devoted exclusively to
their care, not a single case is on record of the transference of the
disease to a husband, wife, or child, nurse or medical attendant. So
that the cancer problem, like the Kingdom of Heaven, is within us.

This conclusion is further supported by the disappointing result of the
magnificent crusade of research for the discovery of the cancer
"parasite," whether vegetable or animal, which has been pursued with a
splendid enthusiasm, industry, and ability by the best blood and brains
of the pathological world for twenty years past. I say disappointing,
because a positive result--the discovery and identification of a
parasite which causes cancer--would be one of the greatest boons that
could be granted to humanity; not so much on account of the actual loss
of life produced by the disease as for the agonies of apprehension
engendered by the fact of the absolute remorselessness and blindness
with which it may strike, and our comparative powerlessness to cure. So
far the results have been distressingly uniform and hopelessly negative.

Scores, yes, hundreds, of different organisms have been discovered in
and about cancerous growths, and announced by the proud discoverer as
the cause of cancer. Not one of these, however, has stood the test of
being able to produce a similiar growth by inoculation into another
body; and all which have been deemed worthy of a test-research by other
investigators besides the paternal one have been found to be mere
accidental contaminations, and present in a score of other diseases, or
even in normal conditions. Many of them have been shown to be abnormal
products of the cells of the body in the course of the cancer proc