This book is based on an abstract of the author's larger work, Peroral Endoscopy and Laryngeal Surgery. The abstract was preparedunder the author's direction by a reader, in order to get a reader's point of view on the presentation of the subject in the earlier book.With this abstract as a starting point, the author has endeavored, sofar as lay within his limited abilities, to accomplish the difficulttask of presenting by written word the various purely manualendoscopic procedures.
drainage canals.]
[FIG. 2.--The author's bronchoscopes of the sizes regularly used. Various other lengths and diameters are on hand for occasional use for special purposes. With the exception of a 6 mm. X 35 cm. size for older children, these special bronchoscopes are very rarely used and none of them can be regarded as necessary. For special purposes, however, special shapes of tube-mouth are useful, as, for instance, the oval end to facilitate the getting of both points of a staple into the tube-mouth The illustrated instruments are as follows:
A, Infant's size, 4 mm. X 30 cm.; B, child's size, 5 mm. X 30 cm.; C, adolescent's size, 7 mm. X 40 cm.; D, adult's size, 9 mm. X 40 cm.; E, aspirating bronchoscope made in all the foregoing sizes, and in a special size, 5 mm. X 45 cm.]
[FIG. 3.--The author's esophagoscopes of the sizes he has standardized for all ordinary requirements. He uses various other lengths and sizes for special purposes, but none of them are really necessary. A gastrosc
