Licence: Public Domain Mark
Credit: Hydatid disease in its clinical aspects / by James Graham. Source: Wellcome Collection.
Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.
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![t PP 8 1392 j HYDATID DISEASE. INTRODUCTION. Almost every living creature is preyed upon by some carnivorous foe, and in not a few cases the parasite itself is liable to be attacked by other parasites. Though there is great variation in the manner and degree in which the different animals are attacked, yet neither the size nor the mode of life of the anima] gives immunity from the attack of these foes. Man himself, placed as he is at the head of the animal kingdom, would appear to be the host of a greater number of parasitic forms of life than any other animal, although it is admitted that new genera and species are constantly being added to the list, and that time may deprive him of the doubtful distinction of being the most liberal entertainer of these unbidden guests. Much attention has been given to the subject of the parasites of man, and, so far, about sixty different forms have been described. They vary greatly in their importance from a medical point of view, some indeed appearing to cause little disturbance of the A](https://iiif.wellcomecollection.org/image/b2117362x_0017.jp2/full/800%2C/0/default.jpg)
