The little appliances to be presently described are the outcome of
ideas which, after a long period of incubation in my note-books, have
ultimately taken concrete form in what, I venture to believe, will be
found to be practical and useful items of magical apparatus. I may
further claim that they combine in an exceptional degree absolute
innocence of appearance with a wide range of practical utility. Examples
of their uses are indicated in the following pages, but the inventive
reader will find that these by no means exhaust their possibilities of
usefulness.