This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your...

2011 Reprint of 1913 Edition. Full facsimile of the original edition, not reproduced with Optical Recognition Software. Hermann Ebbinghaus (1850-1909) was a German psychologist who pioneered the experimental study of memory, and is known for his discovery of the forgetting curve and the spacing effect. He was also the first person to describe the learning curve. In 1885, he published his groundbreaking Uber das Gedachtnis ("On Memory," later translated to English as "Memory: A Contribution to Experimental Psychology") in which he described experiments he conducted on himself to describe the...