ILLUSTRATIONS. 



Fi(i. 1 . Sliding gate in flume 25 



2. Carrier for pipe and sprinklers _ _ 26 



3. Adjustable nozzle _ 39 



4. Adjustable hydrant with hose and nozzle 40 



5. Simple nozzle 46 



6. Nozzle 47 



7. Multiple sprinkler ' 48 



