 A laboratory is built into the rear wall , on the forts southern side . This room is set into the end of the rampart and was used to prepare gunpowder charges . A guardhouse was built at the manning parade 's southern end in 1885 . It is now used as a duty room for the drill squad during recreation demonstrations but originally was a guard 's room and separate cells connected by telephone to Fort Largs . Up to three men appear to have been accommodated in the guard 's room . When the fort was converted to use as a caravan park the guard house was converted to an ablution block . A store and ablution block were also built in 1885 between the stockade and rear defence wall . 
 A laboratory is built into the rear wall , on the forts southern side . This room is set into the end of the rampart and was used to prepare gunpowder charges . A guardhouse was built at the manning parade <a href='null_genetive' title='1'><mark>'s</mark></a>southern end in 1885 . It is now used as a duty room for the drill squad during recreation demonstrations but originally was a guard <a href='null_genetive' title='2'><mark>'s</mark></a>room and separate cells connected by telephone to Fort Largs . Up to three men appear to <a href='been_done' title='3'><mark>have</mark></a> been accommodated in the guard <a href='null_genetive' title='4'><mark>'s</mark></a>room . When the fort was converted to use as a caravan park the guard house was converted to an ablution block . A store and ablution block <a href='uninflect' title='5'><mark>were</mark></a> also built in 1885 between the stockade and rear defence wall . 
A laboratory is built into the rear wall , on da forts southern side . This room is set into tdaend of the rampart and was used to prepare gunpowder charges . A guardhouse was built at thdaanning parade  southern end in 1885 . It is now used as a duty room fir the drill squad durin recreation demonstrations but originally was a guard  room and separate cells connected by telephone to Fort Largs . Up to three men appear to done been accommodated in the guard  room . When thedart was converted to use as a caravan park the guard housee was converted to an ablution block . A store and ablution block was also built in 1885 between the dackade and rear defence wall .