Mrs M. McC. writes: - In your book, Onions and Cress,[21] on p. 49, it is stated that the juice of onions mixed with honey will change the colour of hair from grey to black. Will you be kind enough to tell me in what proportion these should be mixed, as, of course, if not in a proper mixture, the hair would become so clogged. And will you also kindly tell me how one is to extract the juice from the onions, whether they are to be boiled or squeezed when raw.

With regard to the use of a mixture of onion juice and honey as a hair restorative the reader of my little book must remember that it is largely a compilation of quotations from old herbal books, and it gives the history, use and folklore of these interesting edibles. I am not responsible for this recipe and cannot therefore vouch for its utility. We know, however, that onions contain a wonderful sulphured oil and that sulphur in one form or another is an important ingredient of most hair preparations which restore colour. The raw juice evidently should be used, and this can be extracted either by pounding and grating and then extracting the juice under pressure, or it can be readily obtained in any quantity by putting onions through the Enterprise Juice Press. The amount of honey, I think, to be added to this juice should be very small, otherwise, as our correspondent surmises, the preparation would be very sticky and objectionable. Would any reader care to try this and report upon it?

[21] Onions and Cress, 6d. net (postage 1d).