The External Anatomy of the <i>Sarcoptes</i> of the Horse

Warburton (1920) has recently published a survey of our present knowledge of the mites of the genus Sarcoptes ; from his survey it is clear that in spite of all the work that has been done upon these mites, much of it by most pains-taking anatomists, we are still without an accurate knowledge of the anatomy of any one species of Sarcoptes . This is, in part at any rate, due to the fact that some of the best work was done, by Robin and others, between 1860 and 1865, at a time when microscopes and technique were by no means as highly developed as they now are.