364 REPORT OF OFFICE OF EXPERIMENT STATIONS. 



valve was placed between the pump and the upper tank to relieve the 

 engine from the longitudinal vibration resulting from the alternating 

 rise and fall of the 2-inch column of water in the discharge pipe. The 

 working pressure is about 47 pounds. All outside water connections, 

 including the installation of the pumping plant, were made by station 

 employees and not by contract; this having proved the only satis- 

 factory way of getting work done, and at the same time the cheapest. 



A dark room for photographic work and the storage of chemicals 

 has been built in one of the office rooms, and a water-closet is also 

 being added. About 200 feet of board walks have been laid. All 

 station buildings have been painted at least one coat by workmen 

 employed direct by the station, this having been found to be the 

 cheapest and most satisfactory method for all work. A garden has 

 been prepared by trenching the soil and adding lime. About 20 acres 

 on the slope above the station buildings had been roughly cleared of 

 guava and lantana to allow the grass to grow up for pasturage. Tools 

 required for the large force of laborers employed have been purchased 

 from time to time, so that there is now on hand a very satisfactory 

 supply, including the ordinary farm, blacksmith, and carpenter's 

 articles. A blacksmith shop is planned and will shortly be erected, so 

 that repairs and breakages may be attended to without delay and at 

 little cost. 



A fire plug with 50 feet of fire hose has been connected with the main 

 discharge pipe from the pump to give needed fire protection. Other 

 connections will be installed at each of the principal buildings. The 

 large tank has been connected with the one beside the stable, and this in 

 turn with a smaller one at the laborers' quarters, and connections 

 have been made where easy of access in the garden for irrigation, on 

 a moderate scale. 



On the upper clearing where the blue-gum forest was cut away, 

 about li acres have been dug over and terraced, using some of the cord 

 wood for buttress work. Here also a two-room hut has been erected 

 for laborers' quarters, at an elevation of about 1,075 feet. This cot- 

 tage has a corrugated galvanized-iron roof, made with a 4-foot over- 

 hang, the idea being to collect as much rainfall as possible. Besides 

 the two living rooms there is a large supply and tool room. The 

 water from the room is stored in a 3,000-gallon tank; pipes are laid 

 from this so that the water can be used on the terraces. A 2,000- 

 gallon tank and lumber for the construction of a small stable are now on 

 the ground and will be put up some time this winter. These buildings 

 were considered necessary because of the elevation above the main 

 station buildings. The upper clearing is more than a mile from the 

 office by the most direct route, along a narrow and steep bridle trail, 

 or fully 4 miles by the winding Tantalus wagon road. 



This comprises in brief the constructive work on the Hawaii Experi- 



