On the Presence of an Anticoagulin in the Salivary Glands and Intestines of Argas persicus

Abstract
In the literature relating to the Ixodoidea there are a number of cases recorded of injurious effects following the bites of ticks. We do not refer to diseases like piroplasmosis and spirochaetosis which are known to be tick-transmitted, nor to other infective processes which may start at the seat of tick's bite. The effects we refer to follow almost immediately upon the infliction of the bite and are distinctly toxic in character. These effects appear to have been more frequently observed following upon bites inflicted by species of Argas and Ornithodoros.