L. R. Geissler

“ Evidently Wirth, and probably also Wundt, belong to the latter type. Whether Wirth's results would have been different if he had had observers of the first type, it is impossible to say. But it still remains a disadvantage of his experimental work that in all of the final series he was the sole observer (§ 10) . The same objection is implied in Grünbaum's review, although he refrains from making it an explicit criticism. [19] It is true that Wirth made preliminary experiments with several less skillful observers ”

“ For I did not, as Wirth puts it at the beginning of his Reply, intend my article to be "eine Orientierung iiber den gegenwartigen Stand der experimentellen Analyse der Aufmerksamkeit." [5] I did not even offer an exhaustive review of Wirth's own work, but merely "a discussion of his contributions to the subject." [6] Again, Wirth's interpretation of my sentence: "thus the results confirm and extend those of previous tachistoscopic experiments upon the range of attention," implies that I had written: "of his previous experiments, etc." (§5) . ”

“ Reaktion an der Hand der unter vergleichbaren Bedingungen gewonnenen Resultate uach der Schwellenmethode, die allem fur uns als Klarheitsmass gilt, darauf hin kontrolliert werden sollte, wie weit sich die Klarheitsverhaltnisse auch in dem Zeitwert wiederspiegeln." [11] This implication was not observed by me, nor seemingly by A. A. Griinbaum, [12] who lately published a more elaborate review of Kastner and Wirth's reaction-experiments. ”

“ Psych., III, 1903, 358 f. "Je nach der Anwendung dieser verschiedenen an dqm Apparat möglichen Versuchsweisen kann man denselben entweder, ahnlich wie das Falltachistoskop Fig. 339, zu Bestimmungen des Umfangs der Aufmerksamkeit, oder aber auch zu Versuchen iiber den Gesamtntumfang des Bewusstseins verwenden," etc. "Bin zweiter Apparat, mit dem in einer von der soeben beschriebenen etwas abweichenden Weise sowohl Umfangsbestimmungen der Aufmerksamkeit durch momentane Apperceptionsversuche, wie solche des Gesammtbeivusstseins . . . ausgefiihrt werdeii konnen," etc. (Italics are mine.) ”