naturally very reassuring to find that the newest most important achievements of science have followed these principles unconsciously and have applied them before they were explicitly formulated.
From another point of view, a-system which could claim to be 'modern', should formulate general principles that all scientists in every field could follow. This was practically the case with the-system until Francis Bacon. It is also the case with the present system except that different scientists have applied these new principles without having produced a general formulation. The fact that these principles had no general formulation was a retarding factor even in science and made the application of science to human affairs impossible. In the following examples, the different A aspects overlap, and I am emphasizing only the most marked features. Thus Einstein-Minkowski's space-time, Einstein-Mayer's new unified field theory, the newer quantum mechanics, the new physics of high pressure, piezochemistry., the tropism theory of the late Jacques Loeb, the physiological gradients of C. M. Child., ., exhibit clearly the application of non-elementalism. Heisen-berg's restricted principle of uncertainty is also the result of the application of non-elementalism, based on the observation that the 'observer' and the 'observed' cannot be sharply divided. This principle becomes a particular instance of the general A principle of uncertainty, which again is based on the observation that we deal actually with absolute individuals and speak in more or less general terms, with the result that all statements are only probable in different degrees.
The absolute individuality of four-dimensional events, objects, situations, s.r., necessitates an indefinitely flexible evaluation requiring oo-valued semantics. Outside of daily life, the best examples are given in science by the newer developments in vitamins, the effects of radiant energy on heredity, but particularly by the bewildering possibilities disclosed by the developments of physics, physics of high pressure, piezochemistry, polymorphism, colloidal behaviour, and the application of colloidal knowledge to psychiatry. The Polish school of mathematicians has produced the extension of the traditional two-valued A 'logic' to three-, and many-valued 'logic'; Chwistek has based a new foundation of mathematics and a new theory of aggregates on his semantic methods; but even these writers disregarded the general problems of non-elementalism, non-identity, and the necessity for a full-fledged ^-system before their formulations can become free from paradoxes, valid, and applied to life.
All these issues combined are of particular interest to mankind in general, and to the medical profession in particular, because, obviously,