Westcliff-on-Sea, 22nd Oct. 1913.

To the Editors,

Sirs,

With reference to the last paragraph of "Phosphorus and the Nerves" on p. 579 of the October number, I should be obliged if I could be informed through your correspondence columns (1) what are the "fruit oils" recommended therein and (2) how they are to be taken. (3) Is olive oil good to take? (4) Is it good for children? If so how is it to be administered? (5) What nuts are richest in phosphorus? I enclose my card, and remain, yours truly,

W.W.

(1) Any olive oil that bears a thorough guarantee of purity (such as "Minerva" Olive Oil, "Crême d'Or" Olive Oil, etc.); also any pure nut oil (such as supplied by Mapleton's or The London Nut Food Co.); also the pure blended oil sold as "Protoid Fruit Oil." Our advertisement pages should be studied for further details.

(2) Suggestions were given on pp. xxxiii and xxxv of the November number.

(3) Yes, excellent.

(4) Yes, they usually take it more readily than adults, for the latters' palates are generally spoilt. For its use see Right Diet for Children, by Edgar J. Saxon, 1s. net.

(5) Almonds and walnuts. If the nuts are found difficult to digest try them in a finely prepared form, as in Mapleton's Almond Cream, "P.R." Walnut Butter, or "Protoid" Almond Butter. - [Eds.]