His advice is as follows:
‘The hygienist’s answer to the question is a vigorous affirmative. Luxuriant tresses should not be encouraged in the tropics, because in these regions the head is much more exposed to dust and vermin than it is in temperate climates. When a woman has long hair there is a limit to the number of time she can shampoo it, and if she should happen to become infected with head lice the infection may become well established before it is detected. The suggestion that they might become infected with head lice would probably be indignantly repudiated by nine ladies out of ten who had never resided in the tropics; but one has only to remark the frequency with which one sees the natives meticulously combing through each other’s heads to realize how widespread the infection is, and to recollect the number of times one has been called in consultation by some indignant European sufferer from the infection to appreciate how easy it is to pick up these unwholesome parasites.
I do not mean to imply that merely cutting the hair short will diminish the risk of infection, but I do say that the infection will be discovered earlier and will be eradicated more quickly if that is done.
Fortunately, it is fashionable nowadays for ladies to crop their hair, so that I can recommend this hygienic measure to Marjorie secure in the knowledge that hygiene and fashion combine to make it acceptable.’
There is plenty more advice in this fascinating manuscript, please contact: archives@lshtm.ac.uk for more information.