Bauhaus-Universität Weimar

Experimental Psychology: A Manual of Laboratory Practice, Vol. II: Quantitative Experiments, part 2: Instructor's Manual
Titchener, Edward B.
of the classical literature is in German, and very little has been 
translated.1 It follows, further, that the terms chosen must neither 
be familiar terms which would bring with them misleading asso¬ 
ciations, nor terms so unfamiliar that their assimilation would it¬ 
self be difficult. Sometimes it is possible to take a current word, 
and to change or restrict its meaning, for scientific purposes, with¬ 
out loss of the warmth and intimacy that go with its use. Some¬ 
times one must have recourse to a neologism ; but then one must 
see to it that the novel term is not wholly novel, but exists already 
in some derivative or cognate form. And it follows, finally, that 
the terms chosen must be terms that fall naturally into groups, 
that allow of adjectival formations, that lead easily to or from 
other terms and groups: in a word, that they must be both ade¬ 
quate and self-consistent. 
So much for rules. Having formulated them, let us admit 
frankly that they cannot be strictly followed, that every working 
terminology is a compromise. Technical terms are a matter 
partly of individual authority, partly of organic growth, partly 
of inertia of attention, partly of accidental factors,—training, 
association, chance likes and dislikes. They are too important 
to neglect: but he who meddles with them should be endowed 
with a vast deal of patience and a plentiful supply , of humour. 
Cf. F. Tönnies, Mind. N. S., viii., 1899, 289, 467 ; ix., 1900, 46 ; Bald¬ 
win’s Diet, of Phil, and Psych., i., 1901, vii. f. ; ii., 1902, 677 ff. ; Titch- 
ener, Amer. J. of Psych , vii.. 1895, 78 ; viii., 1896-7, 584. 
§ 6. Quantitative Psychology.—On contrast measurements, see A. 
Lehmann, Phil. Stud., iii., 1886, 497 ; H. Ebbinghaus, Sitzungsber. d. 
Berl. Akad., xlix., 1887, 995 (our illustration is drawn from this paper : 
for the law of contrast darkening, cf. ibid., and Psych., i., 223) ; A. 
Kirschmann, P. S., vi., 1890, 417; C. Hess and H. Pretori, Arch, f- 
Ophthal., xl., 4, 1894, i ; H. Pretori and M. Sachs, Pfl. Arch., lx., 1895, 
On the law of the fortune morale, see D. Bernoulli, Comment. Acad, 
scient, imp. Petropolit., v., 1738, 177, 181 f. ; P. S. de Laplace, Théorie 
analytique des probabilités, (1812) 1847, 187, 432 ; cf. the Essai philoso- 
1 It is to be hoped that we shall some day have an Englished series of psycho¬ 
physical classics, in which such things as Weber’s Tastsinn, the constructive parts 
of Fechner’s Elemente, Hering’s Lichtsinn, etc., will be accessible to all English- 
speaking students.


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