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TRANSCRIBER'S NOTE:
A list of corrections can be found at the endof the document. The Table of Contents can be found after the main text.
PHILOSOPHICAL SERIES.
NUMBERS IN PREPARATION.
No. II. Studies from the Laboratory of ExperimentalPsychology.
Researches are in progress on: Memory and the LeastNoticeable Difference in Sensation; Measurement in theDiagnosis of Diseases of the Nervous System; The Rate atwhich the Nervous Impulse Travels; The Personal Differencein the Time of Mental Processes; The Rate, Extent, andForce of Movement; Accuracy of Perception as a Function ofthe Time of Stimulation; The Correlation of Mental Time,Intensity, and Extensity; The Relative Value to Science ofExperiment, Observation, and Memory; The Building ofComplex Perceptions; etc.
No. III. Descartes' "Meditations,"
with Latin andEnglish Texts, and Philosophical Analysis.By George Stuart Fullerton and WilliamRomaine Newbold.
Publications of the University of Pennsylvania
PHILOSOPHICAL SERIES.
EDITED BY
GEORGE STUART FULLERTON
Professor of Philosophy
AND
JAMES McKEEN CATTELL
Professor of Psychology.
ON SAMENESS AND IDENTITY.
A Psychological Study: Being a contribution to the foundations
of a Theory of Knowledge.
BY
GEORGE STUART FULLERTON.
PHILADELPHIA
UNIVERSITY OF PENNSYLVANIA PRESS
PUBLISHERS
On Sameness and Identity.
And some require everything accurately stated; whereas, this accuracy annoys others,either because of their inability to follow a train of reasoning through, or because of its hair-splittingcharacter; for accuracy does involve some hair-splitting.
Aristotle, Metaph. Book I, The Less, c. 3.
Section 1. There are few words the ambiguity of which hasled to more confusion and profitless dispute than that of the wordsame. Men constantly use this word as though it had but onemeaning, and that meaning were always clear, whereas it reallygives expression to a number of widely different experiences,some of which are quite difficult of analysis. It is highly desirablethat these experiences should not be confounded with eachother, b