16 THE NASAL ACCESSORY SINUSES IN MAN 



cutaneous structures just posterior to the inner canthi, and 

 tighten them until the eyes are held the proper distance apart. 

 Pack cotton anterior to these sutures to form a bridge 

 for the nose, and by pressure and adjustment of position of 

 cotton mold the nose into its original shape. Fill the re- 

 maining portion of the cranial cavity with cotton or oakum 

 and make the interfrontal area smooth and firm by means of 

 plaster-of -Paris. Replace the calvarium in the usual way. 



The above-described method was devised by the author 

 for obtaining anatomic and pathologic specimens from cases 

 in which it was necessary to avoid undue disfigurement of 

 the face. The majority of the figures illustrating this work 

 were drawn from specimens obtained in this manner from 

 the postmortem rooms of Friedrichshain Krankenhaus, 

 Berlin. In only one out of 97 cases was the disfigurement 

 sufficient to cause criticism or dissatisfaction on the part of 

 parents or other relatives of the individuals. In that case 

 it was necessary to replace the specimen. 



(6) Methods Used in Preparing Specimens. 1. Serial 

 sections for microscopic study were made of the youngest 

 14 embryos and fetuses of the series. Specimens were fixed 

 in 10 per cent, formalin. Those in which ossification had 

 advanced sufficiently to interfere with sectioning with 

 microtome were decalcified in a solution of 10 per cent, 

 nitric acid in 4 per cent, formalin. The usual technic for 

 celloidin infiltration and blocking was used in 9 cases and the 

 paraffin method in the remaining 5. The celloidin sections 

 were more satisfactory. Hematoxylin and eosin staining 

 was used for all sections. 



2. The heads of fetuses prepared for macroscopic study 

 and the 96 postnatal specimens from Friedrichshain Krank- 



