Perkin, Qualitative Chemical Analysis, 1905).
This is Spinoza's theory of the infinitely infinite," the limiting notion of infinity being of a numerical, quantitative series, each term of which is a qualitative determination itself quantitatively little, e.g.
We shall here consider the qualitative and quantitative determination of these elements.
He emphasized that the practical training should include (1) the qualitative and quantitative analysis of mixtures, (2) the preparation of substances according to established methods, (3) original research - a course which has been generally adopted.
A;` qualitative relation was known at that time to exist, but no absolute measurements of sufficient accuracy had been made.
This section treats of the qualitative detection and separation of the metals, and the commoner methods employed in quantitative analysis.
Fresenius, Qualitative and Quantitative Analysis, Eng.
Nagaoka and Honda have succeeded in showing that the observed relations between twist and magnetization are in qualitative agreement with an extension of Kirchhoff's theory of magnetostriction.
His own speculations led him rather to lay stress on the qualitative aspect of the world.
The elementary use of graphic methods is qualitative rather than quantitative; i.e.
His text-books on the subject, of which the Qualitative appeared in 1841, and the Quantitative in 1846, have a world-wide reputation, and have passed through several editions.
As in Gymnosperms and other groups an interesting qualitative change is associated with the process of fertilization.
This theory of complementary colours as due to the polarity in the qualitative action of the retina is followed by some criticism of Newton and the seven colours, by an attempt to explain some facts noted by Goethe, and by some reference to the external stimuli which cause colour.
The introduction of the blowpipe into dry qualitative analysis by Axel Fredrik Cronstedt marks an important innovation.
- The experimental law of conduction, which forms the basis of the mathematical theory, was established in a qualitative manner by Fourier and the early experimentalists.
Bergman laid the foundations of systematic qualitative analysis, and devised methods by which the metals may be separated into groups according to their behaviour with certain reagents.
But it may be doubted whether De Morgan's own system, "horrent with mysterious spiculae," as Hamilton aptly described it, is fitted to exhibit the real analogy between quantitative and qualitative reasoning, which is rather to be sought in the logical works of Boole.
" Every name," says he (chap. 4), " signifies either substance or something quantitative, or qualitative, or relative, or somewhere, or sometimes, or that it is in a position, or in a condition, or active or passive."
" I am a man," not " I am equal to a man," or in the qualitative, e.g.
Such a determination is qualitative, the constituent being only detected or proved to be present, or quantitative, in which the amount present is ascertained.