A text-book of the diseases of the ear and adjacent organs . Fig. 179.—Double Per-foration of the LeftMembrana Tympani ; theGaps are separated bya narrow Bridge ; infront of the Handle ofthe Malleus is an Ob-long Calcareous a preparation in mycollection. Fig. 180. — ExtensiveCalcification of theEight Membrana Tym-pani INVOLVING ALL THE , Peripheral portion, notcalcined ; 6, Perforationbehind the handle of themalleus ; c, A thin bandwhich connects the partlyeroded long crus of theincus with the capitulumof the stapes. From apreparation in my collec-tion. Fig. 181. — Great

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A text-book of the diseases of the ear and adjacent organs . Fig. 179.—Double Per-foration of the LeftMembrana Tympani ; theGaps are separated bya narrow Bridge ; infront of the Handle ofthe Malleus is an Ob-long Calcareous a preparation in mycollection. Fig. 180. — ExtensiveCalcification of theEight Membrana Tym-pani INVOLVING ALL THE , Peripheral portion, notcalcined ; 6, Perforationbehind the handle of themalleus ; c, A thin bandwhich connects the partlyeroded long crus of theincus with the capitulumof the stapes. From apreparation in my collec-tion. Fig. 181. — Great De-struction of the Mem-brana Tympani; theInferior Extremity ofthe Handle of the Mal-leus IS LAID BARE. a, In front of the handle ofthe malleus is a calcare-ous deposit, which par-tially projects freely intothe gap. (Left ear.) Froma preparation in my col-lection. rigid calcareous mass, which has penetrated all the layers (Fig. 180).Earely a part of the calcined portion projects freely into the orificeof the perforation (Fig. 181). The handle of the

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Keywords: ., bookcentury1800, bookdecade1890, booksubjecteardiseases, bookyear