APPARATUS, MATERIAL, AND REAGENTS. 



637 



especially introduced, consisting simply of a cylindrical glass jar 

 with a weighted wire cover. 



Dressing-case. A small surgical dressing-case, with its usual 

 accessories forceps, knives, small, straight and curved scissors, 

 needles, silk, and so forth will serve for most purposes. 



Pravaz' Syringe. Koch's modification of Pravaz' syringe 

 admits of sterilisation by exposure to 150 0. for a couple of hours. 



Special Instruments and Material. Instruments required 

 for special operations, and the materials necessary for strict anti- 

 septic precautions, need not be detailed here.* 



Dissecting-boards. Slabs of wood in various sizes, or gutta- 

 percha trays, provided with large-headed pins, are employed for 

 ordinary purposes. 



Dissecting-case. A dissecting-case, fitted with scalpels, 

 scissors, hooks, etc., should be reserved entirely for post-mortem 

 examinations . 



FIG. 272. SIPHON BOTTLE, WITH FLEXIBLE TUBE, GLASS NOZZLE, AND A 

 MOHR'S PINCHCOCK. 



(N) GENERAL LABORATORY REQUISITES. 



Siphon Apparatus. Two half-gallon or gallon glass bottles, 

 with siphons connected with long flexible tubes provided with 

 glass nozzles and pinchcocks (Fig. 272), should be employed for the 

 * Vide Cheyne, Antiseptic Sivrgery. 1882. 



