114 TJ. S. COAST AND GEODETIC SURVEY 



Priw 



Special Publicatioif No. 23, United States Coast and Geodetic Survey. 

 Description of its work, methods, and organization. Includes illus- 

 trated sections on tides and currents. This publication can be obtained 

 free of charge from the office of the United States Coast and Geodetic 

 Survey. 



Special JPublication No. 32 (Serial 16), Description of the United States 



Coast and Geodetic Survey Tide-Predicting Machine No. 2, 1915 $0.20 



Special Publication No. 41 (Serial 60), Use of Mean Sea Level as the 



Datum for Elevations, 1917 .05 



Special Publication No. 98 (Serial 244), A Manual of the Harmonic 



Analysis and Prediction of Tides, 1924 ]j 00 



Serial 280, Tidal and Current Surveys, Methods, Instruments, and Pur- 

 poses, 1924. Tills is a small pamphlet which may be obtained free of 

 charge from the office of the United States Coast and Geodetic Survey. 



Special Publication No. 113 (Serial 300), Portable Automatic Tide Gauge, 



1925 . 10 



Special Publication No. 121 (Serial 330), Coastal Currents Aloiig the 



Pacific Coast of the United States, 1926 . 15 



Special Publication No. 124 (Serial 346), Instructions for Tidal Current 



Surveys, 1926 . 15 



Serial 351, Tide and Current Investigations of the Coast and Geodetic 



Survev, 1926 . 15 



Special Publication No. 135, Tidal Datum Planes, 1927 .30 



Special Publication No. 139, Instructions for Tide Observations, 1928- . 20 



Except as otherwise noted, all the above publications are for sale 

 by the Superintendent of Documents, Government Printing Office, 

 Washington, D. C, to whom remittance should be sent. 



