1. If drawing loop is attached to handle by paper band, unscrew handle and insert special detonator into brass tube at end of handle and refix handle. =3. How to Use the Grenade=: 1. Holding grenade in right hand. 2. Pull loop sharply with left hand. 3. Throw the grenade at once. NOTE. Time fuse burns is stamped on handle 5½ or seven seconds. Care must be taken when grenade is found without the pull loop, in case it has been fixed to light on unscrewing handle. OYSTER SHELL OR DISC HAND GRENADE See p. 47. =1. How to Make Safe=: 1. If safety pin is in place, unscrew cap marked =S=. 2. Remove detonator. NOTE. If safety pins and safety tubes are not in place, the above must be done without disturbing the grenade. =2. How to Make Alive:= 1. This grenade is packed alive. =3. How to Use the Grenade=: 1. Holding grenade in right hand, safety pin upwards, pull out safety pin with left hand. 2. Pull off the cap of the safety tube. 3. Holding the grenade with the first or middle finger on top of the safety tube and the ball of the thumb over the cap marked =B=. 4. Throw the grenade with its edge vertical. NOTE. A low or horizontal throw may cause a failure. [Illustration: DISK HAND GRENADE.] PARACHUTE GRENADE See p. 48. =1. How to Make Safe=: 1. Unscrew the plug in the head. 2. Withdraw the detonator. =2. How to Make Alive:= 1. Unscrew the plug and insert detonator, fulminate downwards. 2. Screw the plug and tear off band holding parachute. [Illustration: PARACHUTE GRENADE.] =3. How to Use the Grenade=: 1. Hold loop of cord firmly with fingers of right hand. 2. Tear out plug from handle and unwind a short length of the cord. 3. Holding the grenade in right hand, the first and second fingers firmly in the loop of the cord. 4. Throw the grenade to a height of at least 3 to 4 yards. NOTE. This grenade requires considerable practice. RIFLE GRENADES See p. 50. 1913 and 1914 =1. How to Make Safe=: 1. Unscrew igniter plug in the head of 1913 grenade. Unscrew fuse from the body of 1914 grenade. =2. How to Make Alive=: 1. Screw igniter into head of 1913 grenade. Screw fuse into body of 1914 grenade. =3. How to Use the Grenade=: 1. Follow out custom of firing British Rifle Grenades. NOTE. Only a German rifle can be used, and more care in handling the grenade before firing must be taken than with the British grenades, they are liable to become “alive” if dropped on to the tail rods. [Illustration: RIFLE GRENADES.] EXPLOSIVES USED IN GRENADES Explosives are divided into two classes: 1. Low explosives. 2. High explosives. To the first group belong all propellant explosives, i.e., all powders, such as gunpowder and smokeless powders used in firearms.