I have thought I could give somewhat of that guidance because of my comprehension of its need, for the comprehension of a need is sometimes half-way towards supplying the need. My profound belief in the value of folklore as perhaps the only means of discovering the earliest stages of the psychological, religious, social, and political history of modern man has also entered into my reason for the attempt. Many years ago I suggested the necessity for guidance, and I sketched out a few of the points involved (Folklore Journal, ii. 285, 347; iii. 1-16) in what was afterwards called by a friendly critic a sort of grammar of folklore.