APPARATUS, MATERIAL, AND REAGENTS, 

 especially introduced, consisting simply of a cylindrical git 



637 



with a weighted wire cover. 



ass jar 



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° C. for a couple of hours. 



Special Instruments and Material.— Instruments requii-ed 

 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 

 ordinai-y 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 

 Mohk'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 Cheyae, Antiseptic Surgery. 1882. 



