348 



on stream measurements and accounts. Mr. I [orner was detained 

 in W'aimea twelve days on account of his wife's serious illness. 

 The halance of the month was spent on i^alherin^- rainfall records 

 and stream measurements. 



Ufa III. 



Both Mr. IJailey and ]\Ir. Christiansen were employed duriui^ 

 almost the entire month on the construction of five new clock- 

 register stations on the streams of East Maui. Besides the four 

 stations on the Kailua, Xailiilihaele, Waikamoi and Ilaipuaena 

 streams, which were completed in Septemher, work was started 

 on the Hanawi, East and West Ko])iliula, East Wailuaiki and 

 W'ailuanui streams. Twelve stream measurements were made. 



The extreme drought on Alaui still continues, and plantations 

 are suffering for want of water. 



Oahu. 



A concrete weir with a low water 2.0 feet crest opening, and 

 a Hood water 12.0 feet crest opening, was hej^un on the ui)per 

 Xuuanu stream on Octoher 10, and work was temporarily sus- 

 ])ended on October 18, to allow for necessary change of design. 

 This weir is to measure waste water of the Nuuanu valley to 

 determine whether the amount is sufficient to augment the pres- 

 ent city sup])ly. The discharge .so far indicates that a mean of 

 about one-half million gallons per day may be added to the city's 

 supply at this point. 



A reconnaissance and miscellaneous measurements were made 

 of the spring's and small streams supplying the Makawao ditch 

 which serves the Waimanalo plantation. These measurements, 

 as well a.s measurements on the Kaukonahua. show that the 

 drought still continues on Oahu. 



Seepage and miscellaneous measurements were made on a 

 number of the ditches of the Oahu Sugar Com]xuiy. and a meas- 

 urement made of the outflow from the north portal of the Waia- 

 hole tunnel shows that this discharge lia> decreased to 14.6 mil- 

 lion gallons ])er da\', and is steadily decreasing. 



Nona. I!(i:\.'(iii. 



The field work of this, excepting tlu' niainUnanci' of rain gages 

 and one stream gaging station on the Kiilae stream, is nraring 

 com])lction. All reservoir sites have been eompleti-d. .and tlu' 

 population and present water su]ii)1v census is nearly so. The un- 

 dersigned, accompanieti by Mr. T. V. .Sedgwick, underground 

 water expert, expects to spend November 10 to 13, in looking 



