THE
RELATIONS OF TRYPSLN AND AMYLOPSIN 229
tions, sent out as pure amylopsin. Of course, it has still
other bearings; upon the specificity of ferments, for instance, and upon the
relation between the leucocytes and amylopsin in the enzyme treatment of cancer
and tuberculosis. Amylopsin might be regarded as the ferment-food of the
leucocytes, in extension of the view previously expressed by the writer in the
Medical Record that amylopsin was the medium in which the leucocytes acted.
By the use of the scientific imagination possessed by the writer. and of which
Professor Leo Loeb recently wrote in the Medical Record (June 25, 1910,
p. 1086; see Appendix B, p. 267), he considers that it is highly probable, not
only that the leucocytes can convert amylopsin into an intracellular tryptic
ferment, but that they can transform it into an inverting enzyme. The
interesting subject may be left with the remark that once again it is a
confirmation of the scientific truth of the words of Pasteur, that Science is
Prevision.”