6 
MALLERY. 
And this must needs be so. Besides the search for, find¬ 
ing, and sifting particles of truth, the precious grains must 
be retorted and analyzed with such care that no one human 
life will suffice to explore more than a small field. Phe¬ 
nomena are infinite and science must deal with all as ob¬ 
served. In the derivation and formulation of its induced 
laws no compromise is possible as in politics or in ethics. 
Science is limitless, knowing no bonds of time or space. 
But this infinite is composed of the infinitesimal—atoms, 
molecules, protoplasms, or whatever name may be invented 
to console our ignorance—and it is by the study of these 
n^nutise that science exists. So this is the era of specialties. 
Every freshly discovered fact has not merely its own signifi¬ 
cance, but by its relations to other facts may solve problems 
yet most obscure. The original investigator must be not 
only a specialist, but must be a specialist working in some 
subdivision of a specialty. 
This restriction with differentiation is not confined to 
original research, but extends to works of compilation and 
examination within each one of all the specialties. The 
physical geologist must apply for help to the paleontologist, 
to the lithologist, the chemist, and to many other specialists. 
So, in addition to the specialization of the natural sciences, 
the scientific professions are methodically resolved. In law, 
besides the boundaries between the nisi prius advocate and 
the jurist and between civil and criminal practice, there are 
recognized monopolizers of common law, equity, realty, com¬ 
merce, admiralty, and many other aisles and corridors in 
the temple of Themis, among which the circulation is in no 
sense free. So also, after the demarcation between medicine 
and surgery, there are specialists for age and sex, for brain, 
eye, ear, throat, lungs, stomach, liver, nerves, skin—in short, 
for each organ and region of the body. Nor is this mere 
charlatanry. The whole profession is improved and many 
human ills are relieved by this division of labor. Similar 
specialization is found in art. The painter of a good portrait 
is supposed to be unable to produce a good landscape, and 
