So far as the channeling function of a formality is concerned it has no place where men's activities are already divided into definite, clear-cut business categories. Where life has already organized itself effectively, there is no need for the law to intervene. It is for this reason that important transactions on the stock and produce markets can safely be carried on in the most "informal" manner. At the other ex- treme we may cite the negotiations between a house-to-house book sales- man and the housewife. Here the situation may be such that the house- wife is not certain whether she is being presented with a set of books as a gift, whether she is being asked to trade her letter of recommendation for the books, whether the books are being offered to her on approval, or whether-what is, alas, the fact-a simple sale of the books is being proposed. The ambiguity of the situation is, of course, carefully cul- tivated and exploited by the canvasser. Some "channeling" here would be highly desirable, though whether a legal form is the most practicable means of bringing it about is, of course, another