. Insects affecting domestic animals [microform] : an account of the species of importance in North America, with mention of related forms occurring on other animals. Parasites; Insects, Injurious and beneficial; Animaux domestiques; Insectes nuisibles. Flo. Ifi4 Sarroptin nmtimn: male anil female (copied from Murray's figures reduced from Robin). detaches i'-"lf from the skin iuere is found a mass of epidermic matter in a bed of the thickncBc of some millimeters, and all around are lines or burrows formed by the raising of the skin. An the malady proceeds the feathers of the head and upp
. Insects affecting domestic animals [microform] : an account of the species of importance in North America, with mention of related forms occurring on other animals. Parasites; Insects, Injurious and beneficial; Animaux domestiques; Insectes nuisibles. Flo. Ifi4 Sarroptin nmtimn: male anil female (copied from Murray's figures reduced from Robin). detaches i'-"lf from the skin iuere is found a mass of epidermic matter in a bed of the thickncBc of some millimeters, and all around are lines or burrows formed by the raising of the skin. An the malady proceeds the feathers of the head and upper part of the body beome atrophied; their free extremity bends, twists, and rolls upon itself, and ends by u'sappearing in the midst of the epidermal products accumulated at the base of the quiii. The head and neck of the fowl have at that period a very peculiar aspect. They are despoiled of all the feathers that decorate them in their nor^^ial state. Tho comb is brown, with a ragged surface, drawn back upon itself, broad at its base, and spotted with whitish, mealy patches. On various parts crusts, of some lines in thickness, appear, which when detached leave a scaly surface, which recalls to mind the disease named phthiriasis. The complaint does not always begin on the head. It sometimes makes its first approaches on the feet. Similar symp- toms occur there, but they proceed more slowly, but by and by the stales on the feet and legs begin to come oft", and a crust forms upon them, more especially between the toes. Sometimes it envelops the whole of the foot and tibia, forming a crust a third of an inch in thickness. Bits as large as a hazel nut or a walnut may be broken otf. This atfec- tion has much analogy with the Norwegian itch above described. It can be com- muuicated both to man and the horse. (Murray.) 4663—No. 6 18. Fio. 165 Sareoptcs mutant: side \iew (copied from Murray's figure after Kobin).. Please note that these images are extracted from scanned page ima
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherwashi, bookyear1896
