Bauhaus-Universität Weimar

Experimental Psychology: A Manual of Laboratory Practice, Vol. II: Quantitative Experiments, part 2: Instructor's Manual
Titchener, Edward B.
§ 36. The Technique of the Simple Reaction 
32 7 
C. Kuhn, Angewandte Elektricitätslehre, 1866, 1185 f. 1228 ff. ; 
H. Schneebeli, Pogg. Ann., civ. (ccxxxi.), 1875, 619; and esp. 
Wundt, P. P., ii., 1893, 322 ff. ; iii., 1903, 387 ff.1 The author has 
Fig. 38.—Old-pattern chronoscope, break to break. Kraepelin, P. S., i., 574. The 
voice-key is shown without relay. 
not thought it worth while to reproduce from Wundt the four 
figures which show the working of the various mechanisms. For 
use in the Cornell laboratory, he has had these figures enlarged 
(on sheets 10.5 by 8 in.) ; has typewritten, in translation, the ac¬ 
companying explanatory text ; and has framed each figure with 
its text as a wall-chart. The four charts may thus be examined, 
and compared with the clock itself, by any interested student.2 
To keep the works free of dust, and at the same time to deaden the 
noise of the spring (an important matter, if the instrument stands in the 
reacting room), the chronoscope may be permanently housed in a glass- 
fronted wooden case ; the clock is wound through a hole in the glass, or 
1 No descriptive pamphlet is issued by the makers, who, however, furnish on 
request type-written instructions regarding the use of the chronoscope at large or 
the function of the special mechanisms. 
2 A simple diagram, corresponding to Wundt’s first figure, will be found in A. 
Binet, Introd. à la psych, exper., 1884, 109.


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