197 



Mr. Hardy spent 26 days in the field, visited 18 stream and five 

 rain gage stations, and made 16 regular and one miscellaneous 

 discharge measurements. 



Air. Horner spent 28 days in the field on construction work, 

 visited eight stream measurement stations, 14 rain gage and 

 three evaporation stations, and made four discharge measure- 

 ments. 



OAHU. 



A gaging station was established on a ditch that diverts from 

 East Branch of Manoa Stream above our gaging station. Main- 

 tenance work was done on several stations in the vicinity of Ka- 

 huku. 



A field examination of conditions affecting the water supply at 

 Schofield Barracks w^as made at the request of the commanding 

 officer of the Hawaiian Department, U. S. Army. A report of 

 this examination is in preparation. 



Necessary low stage discharge measurements were secured at 

 several of the gaging stations. 



The outflow of the Waiahole portal, including "R" tunnel, of 

 the Waiahole tunnel was found on May 7 to be 28 million gallons 

 per day. Inflow between the Waiahole portal and the Division 

 of Hydrography gaging station below the power house, includ- 

 ing discharge from "A" tunnel, amounted to about five million 

 gallons per day. 



At the request of the Governor, a topographic map of Oahu 

 was prepared in colors, showing the areas of land owned by the 

 Territory, Army and Navy reservations, homesteads, and forest 

 reserves, and the locations of the stream gaging stations and rain- 

 fall stations maintained in cooperation with the U. S. Geological 

 Survey. This map shows in a comprehensive way the economic 

 relation of the surface water investigations to the territorial land 

 divisions of Oahu. 



G. K. Larrison, superintendent, spent five and one-half days in 

 the field chiefly in connection with the field examination of the 

 water supply for Schofield Barracks, and visited five stream meas- 

 urement stations inspecting the water stage registers. He was 

 on leave one day. 



C. T. Bailey, assistant engineer, was on annual leave the entire 

 month. 



R. C. Rice, assistant engineer, spent most of the month in the 

 office computing water stage register records, ararnging technical 

 files and preparing rating curves for several stations. He spent 

 one and one-half days in the field, visited five stream and one 

 ditch stations and made two measurements at regular stations. 



H. A. R. Austin, junior engineer, spent eight days in the field, 

 visited 13 stream and four rainfall stations, and made seven regu- 

 lar and six miscellaneous discharge measurements. 



