Lectures on the comparative anatomy and physiology of the invertebrate animals : delivered at the Royal College of Surgeons . The vermicule is always contained in a cyst. The occurrence of these cysts in vast numbersin the muscular tissue was first made known in an interesting case pub-lished by Mr. Hilton §: and many others have since been recorded. The cysts are very readily detected by gently com-pressing a thin slice of the infected muscle between twopieces of glass and applying a magnifying power of an inchfocus. They are of an elliptical figure, with the extremi-ties more or less attenua
Lectures on the comparative anatomy and physiology of the invertebrate animals : delivered at the Royal College of Surgeons . The vermicule is always contained in a cyst. The occurrence of these cysts in vast numbersin the muscular tissue was first made known in an interesting case pub-lished by Mr. Hilton §: and many others have since been recorded. The cysts are very readily detected by gently com-pressing a thin slice of the infected muscle between twopieces of glass and applying a magnifying power of an inchfocus. They are of an elliptical figure, with the extremi-ties more or less attenuated, often unequally elongated, andalways more opake than the body or intermediate part ofthe cyst, which is, in general, sufficiently transparent toshow that it contains a minute coiled-up worm {Jig. 41.).The usual size of tlie cyst is -y^t\i of an inch in the longspiralis, and diameter, and y^ oth of an inch across their middle part,magn. Thc cysts are arranged with their long axis parallel tothe course of the muscular fibres {Jig. 40.), which probably results* LXXX. p. 315. t LXXX* J LXXXI. p. 528. § LXXXII,.
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