FIRST AID TO THE INJURED 



343 



(see Fig. 3), the assistant holding the tongue changing 

 hands, if necessary, to let the arm pass. Just before 

 the patient's hands reach the ground, the man astride 

 the body will grasp the body with his hands, the balls 

 of the thumbs resting on either side of the pit of the 

 stomach, the fingers falling into grooves between the 

 short ribs. Now, using his knees as a pivot, he will 

 at the moment the patient's hands touch the ground 

 throw (not. too suddenly) all his weight forwards on 

 his hands, and at the same time squeeze the waist 

 between them, as if he wished to force something in 

 the chest upwards out of the mouth; he will increase 



FIG. 2 



the pressure while he slowly counts one, two, three, 

 four (about 5 sec.), then suddenly let go with a final 

 push, which will spring him back to his first position. 

 This completes expiration. 



