152 



worth while, the thint;-s tliat are necessary to a proper administra- 

 tion of its forests. 



Very respectfully, 



RALril S. HOSMER, 



Superintendent of Forestry. 



DIMSION OF HYDROGRAPHY. 



ANNUA!. KKTORT FOR THE YEAR 1913. 



April 7, 1914. 

 Board of Commissioners of Agriculture and Forestry, Flonohdu. 



Gentlemen: — The following brief report of operations of the 

 Division of Hydrography for the period July 1 to December 31, 

 1913, is submitted : 



The Division of Hydrography was created by Act 56 of the 

 1913 Legislature on July 1, 1913, which provided that the present 

 District of Hawaii of the U. S. Geological Survey, Water Re- 

 sources Branch, should become a division of the Bureau of Agri- 

 culture and Forestry. 



During the six months period a large amount of reconnaissance 

 surveys have been made on all islands, preliminary to the out- 

 lining of a definite policy as to the carrying on of the work. All 

 of these investigations were completed on December 31, and 

 stream measurement stations have been selected on all streams 

 and ditches to be investi.gated. The policy adopted in this con- 

 nection is covered in detail in a special report under date of Octo- 

 ber 3, 1913. A further special report has been submitted on 

 "Kauai Irrigation Projects" under date of November 6, 1913. 



The field work of the Special Kona, Hawaii, Investigation 

 authorized by Act 102 of the 1913 Legislature was ]iractically 

 completed. Stream and rainfall measurements will be continued 

 during the calendar year T'H, after which the final re])iirt and 

 estimate will be filed. 



The following tabulation shows the status of all stream and 

 rain gaging work during the period (.'uding December 31, 1913. 

 Attention is invited to the decrease in the nnmher of stations. 

 This is the result of the policy adopted to al)andt)n all stations of 

 wliicli the records can not be of value in connection with ])resent 

 or future utilization aufl development. .Since December 31 many 

 of the discontinued stations have been re|)lace(l by i)crmanent sta- 

 tions at locations where these records will be of value. 



It is estimated that about three hundred stream and ditcli 

 measurement stations will be necessar\ {>> entirely cn\ir the isl- 

 ands of Kauai, ( ^ahu, Maui, Molokai and Hawaii. 



