854 HYDROGRAPHIC MANUAL PaGE 804 



WATER TOWER (infrequent).- — A decorative structure enclosing a tank or standpipe, or used 

 as such, when by its appearance it would not be recognized as such. 

 WINDMILL. — A self-explanatory term. 



EXAMPLES 



CHIMNEY, schoolhouse (Mt. Vernon H. S.) 

 CUPOLA, schoolhouse (Normal School, 98 ft. high) 

 FLAGPOLE (Green Hill Country Club) 

 LOOKOUT TOWER, fire, steel (110 ft. high) 

 SPIRE, church (A Nanticoke Church Spire) 

 STACK (Aiea Mill) 

 STACK, black, metal (at Hot House) 

 STACK (TALLEST OF FOUR), black 

 STACK, white, concrete 

 TANK (BAY STATE CO) (O Bay) 

 TANK (SOUTH) (southerly of three yellow tanks) 

 'TANK, steel (125 ft. high) 

 TANK, yellow (A Hot) 



•tower (city hall) 



854. Descriptions of Stations 



Station descriptions on the appropriate forms shall be submitted for all triangula- 

 tion stations, and all recoverable topographic and hydrographic stations. The descrip- 

 tions for the triangulation stations should be submitted for the entire project or season 

 and slioidd be forwarded by transmitting letter with other triangulation records and not 

 included on a transmitting letter with other records pertaining to hydrography. The 

 descriptions of recoverable topographic and hydrographic stations shoidd be submitted 

 for each sheet with the other records having to do with that survey. (See also 2142.) 



A description should be typewritten and only one side of the form used; if additional 

 space is requned, one or more continuation cards should be used. 



The correct form to use in each case, with a reference to the text where the proper 

 use of each form is described, is listed below: 



Form Refer- 



No. ence 



Triangulation station established 525 227 



Triangulation station recovered, lost, or searched for but not found 526 2272 



Stations of other agencies connected to C. & G. S. triangulation 525 2271 



Recoverable topographic station established 524 235 1 



Recoverable topographic station recovered, lost, or searched for but not found 524 2351 



Stations of other agencies located by C. & G. S. topography 524 236 



Hydrographic stations (see topographic stations) 524 245 



855. Coast Pilot Report 



Coast pilot notes should be forwarded in duplicate as a separate report at the end 

 of the season. Wliile such notes are used in the compilation of new editions, they are 

 usually published first in Supplements. The report should therefore be submitted in 

 such form that one copy of it can be cut and used in the Coast Pilot Section without 

 copying. Instructions for the preparation of coast pilot notes are given in 9121 and 915. 



During a hydrographic survey each hydrographer should keep a journal in which 

 notes and memoranda are entered for use in compiling the general coast pilot report at 

 the end of the season (see 159 and 385). These notes should include information 

 obtained while en route to and from the project area as well as that resulting from the 

 season's field operations (see 175). Any information reported under "0, Coast pilot 

 information," in the Descriptive Report (see 8420) should be repeated in the coast 

 pilot notes, or an extra copy of that part of the Descriptive Report should be mailed 



