"What are we doing while we are endeavouring to recollect an idea which we have forgotten? What faculty is then exerted? How is it exerted? Nothing can be more wildly mysterious. A learned and ingenious physician gave me a very pretty similitude as a slight explanation of it. Said he 'You are like one who has forgotten nature, and tries all the sounds of a flute till his ear acknowledges its old acquaintance.'"
The Hypochondriack, No. 67
<u>The Hypochondriack</u>, No. 67 (April, 1783). See also <u>The London Magazine, or Gentleman's Monthly Intelligencer</u>
 &lt;<a href="http://books.google.com/books?id=lPwqAAAAYAAJ&pg=PA164#v=onepage">Link to Google Books</a>&gt;<br>
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See also James Boswell, <u>The Hypochondriack</u>, ed. Margery Bailey, 2 vols. (Stanford UP, 1928).