explain this uncanny horror, which I believe is shared by a large number of people ?
“I myself loathe and fear spiders—so much so that I have been known on more than one occasion to go into a darkened room and to declare the presence of one of these creatures, my pet abomination being subsequently discovered. …
“F. E.”
What sense-organ—because there must be one—enables F. E. and others like him (or her) to detect the presence of a small creepy-crawly ?
We turn now to a series of medical cases which may throw some light upon this peculiarity.
There are people who suffer from asthma when they go near horses. To enter a stable or to sit behind a horse is to them a certain means of bringing on an attack.
This susceptibility and the peculiar form taken by the reaction remind us of hay fever. In sufferers from this troublesome complaint the pollen of certain plants has an irritating effect upon the mucous surfaces of the eyes, nose, and bronchial tubes. So in like manner recent investigation has shown that there is in the blood of the horse a proteid substance which acts as an irritant poison to those susceptible people. Their asthma, therefore, is merely a manifestation of the irritation produced by the poisonous body or its emanation when it is borne to them through the air. Similarly we are justified in arguing that cats
