Nos.2 and 3 stoop, grasp the doubled sling midway between the poles with the right hand and sweep it off the handles, rise, holding it at full length of the arm, buckle to the front. They take a side-pace between the handles and place the sling over the shoulders, dividing it equally, buckle to the right. They stoop, slip the loops over the handles, commencing with the left, and grasp both handles firmly. No.1 will then ensure that they rise slowly together lifting the stretcher, No.3 conforming closely to the movements of No2