Besides the attacks of its mightier enemies, the reindeer is subject to the persecutions of two species of gad-fly, which torment it exceedingly. The one (_Œstrus tarandi_), called Hurbma by the Laplanders, deposits its glutinous eggs upon the animal’s back. The larvæ, on creeping out, immediately bore themselves into the skin, where by their motion and suction they cause so many small swellings or boils, which gradually grow to the size of an inch or more in diameter, with an opening at the top of each, through which the larvæ may be seen imbedded in a purulent fluid. Frequently the whole back of the animal is covered with these boils, which, by draining its fluids, produce emaciation and disease. As if aware of this danger, the reindeer runs wild and furious as soon as it hears the buzzing of the ’fly, and seeks a refuge in the nearest water. The other species of gad-fly (_Œstrus nasalis_) lays its eggs in the nostrils of the reindeer; and the larvæ, boring themselves into the fauces and beneath the tongue of the poor animal, are a great source of annoyance, as is shown by its frequent sniffling and shaking of the head. A pestilential disorder like the rinderpest will sometimes sweep away whole herds. Thus in a few weeks a rich Laplander or Samojede may be reduced to poverty, and the proud possessor of several thousands of reindeer be compelled to seek the precarious livelihood of the northern fisherman. The elk or moose-deer (_Cervus alces_) is another member of the cervine race peculiar to the forests of the north. In size it is far superior to the stag, but it can not boast of an elegant shape, the head being disproportionately large, the neck short and thick, and its immense horns, which sometimes weigh near fifty pounds, each dilating almost immediately from the base into a broad palmated form; while its long legs, high shoulders, and heavy upper lip hanging very much over the lower, give it an uncouth appearance. The color of the elk is a dark grayish-brown, but much paler on the legs and beneath the tail. [Illustration: 15. ELKS]