146 MODERN BIOLOGIC THERAPEUSIS 



serum to be introduced into the spinal canal. 

 The flow may be increased or decreased by rais- 

 ing or lowering the glass cylinder. // any dif- 

 ficulty is experienced in starting the flow of 

 serum, the operator may blow gently in the top 

 of glass tube containing the cotton filter. 



The physician is enabled to observe, by means 

 of the short glass tubing near metal tip of rub- 

 ber tubing, the instant that all of the serum has 

 been introduced; and thus air can be prevented 

 from being forced into the spinal canal. 



When the desired amount of serum has been 

 introduced, the needle with the attached glass 

 cylinder is rapidly withdrawn and the puncture 

 wound is sealed with collodion. The patient 

 should be placed in a recumbent posture and, if 

 there is delirium or severe headache, the pa- 

 tient 's head should be lowered. 



Symptoms of shock or collapse during the in- 

 jection of the serum are best treated by raising 

 the head of the patient and immediately re- 

 moving fluid from the spinal canal. If neces- 

 sary, use artificial respiration and administer 

 stimulants hypodermically. 



