Two authors, Meringer and Mayer (a philologist and a psychiatrist) did indeed in 1895 make the attempt to approach the problem of slips of the tongue from this side. They collected examples and first treated them from a purely descriptive standpoint. That, of course, does not yet furnish any explanation, but may open the way to one. They differentiated the distortions which the intended phrase suffered through the slip, into: interchanges of positions of words, interchanges of parts of words, perseverations, compoundings and substitutions. I will give you examples of these authors' main categories. It is a case of interchange of the first sort if someone says "the Milo of Venus" instead of "the Venus of Milo." An example of the second type of interchange, "I had a blush of rood to the head" instead of "rush of blood"; a perseveration would be the familiar misplaced toast, "I ask you to join me in hiccoughing the health of our chief."[3] These three forms of slips are not very frequent. You will find those cases much more frequent in which the slip results from a drawing together or compounding of syllables; for example, a gentleman on the street addresses a lady with the words, "If you will allow me, madame, I should be very glad to _inscort_ you."[4] In the compounded word there is obviously besides the word "escort," also the word "insult" (and parenthetically we may remark that the young man will not find much favor with the lady). As an example of the substitution, Meringer and Mayer cite the following: "A man says, 'I put the specimens in the letterbox,' instead of 'in the hot-bed,' and the like."[5] The explanation which the two authors attempt to formulate on the basis of this collection of examples is peculiarly inadequate. They hold that the sounds and syllables of words have different values, and that the production and perception of more highly valued syllables can interfere with those of lower values. They obviously base this conclusion on the cases of fore-sounding and perseveration which are not at all frequent; in other cases of slips of the tongue the question of such sound priorities, if any exist, does not enter at all. The most frequent cases of slips of the tongue are those in which instead of a certain word one says another which resembles it; and one may consider this resemblance sufficient explanation. For example, a professor says in his initial lecture, "I am not _inclined_ to evaluate the merits of my predecessor."[6] Or another professor says, "In the case of the female genital, despite many _temptations_ ... I mean many attempts ... etc."[7]