ABSTRACT
Smell is fatal for repellents intended to be used in jungle warfare, but, provided it is pleasant, it may even be an advantage in civilian use. Owing to the importance attached to long duration of effectiveness for military purposes, research on repellents during the war has tended to develop a type of repellent with very high boiling-point and hence, almost as a corollary, less effective at a distance than some more volatile repellents.
