| OCR Text |
Show 1886.] MAMMALS IN THE SOCIETY'S GARDENS. 213 the inferior maxilla. This cavity was filled with pus, but the abscess was limited by fibrous walls of considerable thickness. Feeling convinced that this was something more than a simple abscess, the bony walls were dissected and the sac removed and examined in detail. This cyst is represented of natural size in fig. 5. Projecting into its posterior aspect are portions of the fangs of two undeveloped teeth. This is sufficient evidence to show that we have to deal with a follicular cyst--that is, the walls of this sac are constituted by the greatly distended follicle of one of the teeth, probably the incisor. From some cause or other suppuration had occurred, and led to the necrosis of the maxilla and absorption of the fangs of the Fig. 6. The tunica vaginalis and testis of a L a m b affected with a congenital parenchymatous hydrocele. c, cremaster; d, tunica albuginea; e, epididymis ; t, secreting-tissue of the testis. molar teeth : a remnant of one may be seen projecting into tbe cyst. T he inferior dental nerve, as a mere thread, was closely embedded in the walls of the jaw on the outer side of the sac. The opposite m axilla was affected in a precisely similar manner. The last example of symmetrical disease I shall describe in this communication is a singular affection of the testes of a Lamb, which, so far as m y knowledge of testicular disease extends, is unique. The lamb was thought to be ruptured on both sides, but on cutting into the supposed hernial sac a large quantity of fluid escaped, but no gut or omentum were found. The remaining testis was removed entire with its coverings and sent to me. The enormously dis-t ended outer covering (fig. 6) is the tunica vaginalis and testis cut off |
