A text-book on diseases of the ear, nose and throat . The characteristic difference between the two varieties of aspergillus,the so-called yelloiv and blacl, is seen in the shape and size of the recep-tacidum and the arrangement of the sterigmata upon it, these two partsforming the so-called head or sporangium. In the A. nigricans (Fig. 71, B) the sporangia or heads are distin-guished from those of the A. glaucus (Fig. 71, A) by the fact that in the firstthe sterigmata cover the receptaculum, which is spherical, on all sides,while in the latter, the lower fifth or fourth of the receptaculum, w
A text-book on diseases of the ear, nose and throat . The characteristic difference between the two varieties of aspergillus,the so-called yelloiv and blacl, is seen in the shape and size of the recep-tacidum and the arrangement of the sterigmata upon it, these two partsforming the so-called head or sporangium. In the A. nigricans (Fig. 71, B) the sporangia or heads are distin-guished from those of the A. glaucus (Fig. 71, A) by the fact that in the firstthe sterigmata cover the receptaculum, which is spherical, on all sides,while in the latter, the lower fifth or fourth of the receptaculum, whichis ovoid in shape, is entirely free from sporangia. 2Iacroscopic Features.—The macroscopic appearances of a mass of this Figs. 70, and 71 are from original drawings by the author. 102 DISEASES OF THE EAR. fungus, as found in or washed from the ear, are worthy of attention. Ifan ear containing a mass of aspergillus be examined by means of an ear-mirror and ear-funnel, it will present most usually an appearance whichleads to the supposition that
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Keywords: ., bookcentury1900, bookdecade1900, bookidtextbookondi, bookyear1901
