Page 787 records and reports 8412b 



8412. Tide Sheet 



Titles shall not be placed on hydrographic sheets by the field party. But the 

 information for the title of a survey shall be furnished on Form 537, Hydrographic Title 

 Sheet. One copy shall be forwarded attached to the smooth sheet, and one copy shall 

 be inserted in the Descriptive Report. Entries shall be made in all applicable spaces 

 on the form. The title of a hydrographic survey must clearly indicate the limits of 

 the survey and agree with the entries in the Sounding Records. The information 

 shall include the specific locality, year of the survey, the names of those persons actually 

 in charge of sounding, the depth unit, and the plane of reference. (See 9322.) 



8413. Index of Sheets 



Where there are a number of sheets in one project, an admirable practice is to 

 make an index of these on a small-scale outline map, on which the limits, numbers, 

 and scales of the various sheets are shown. Where this is done, a copy should be 

 inserted in the Descriptive Report, with the specific survey crosshatched or otherwise 

 indicated, as it is of considerable assistance to the cartographers and others using the 

 records. The scale of the index is immaterial, but the size of the paper should be 8 by 

 lOK inches. It may be prepared at an enlarged scale for reduction and multilith 

 reproduction in the Washington Office, or drawn on tracing cloth at the final scale for 

 ozalid prints. In addition to the Hmits of sheets of the project it should include any 

 junctions with prior surveys. Prior surveys in the area may also be outlined if this can 

 be done without confusion. 



842. Descriptive Report Text 



The text of the Descriptive Report shall be type-written on letter-size paper with 

 a left-hand margin of at least 1 inch. It need not be submitted in duplicate. 



Each text shall be entitled "Descriptive Report to Accompany Hydrographic 



Survey H- (Field No )" {insert registry and field numbers) and 



shall include the title and year of the survey. At the top of the page shall be given the 

 scale of the survey, the names of the Chief of Party and the major survey vessel, and 

 the name of the officer in immediate charge of the field work, if other than the Chief 

 of Party. 



The text should be written clearly and concisely, and according to a standard 

 form. It is intended to supplement and not duplicate the information which is more 

 clearly evident on the smooth sheet. Methods and instruments may be identified and 

 verbose explanations avoided by use of the reference numbers in this Manual. Wherever 

 reference is made in the text of the report to a feature on the smooth sheet, the latitude 

 and longitude shall be given. The text shall be arranged under the following lettered 

 headings and in the order appearing here, omitting any inapplicable headings. 



A. Project. — Include the project number and date of original, instructions, and the dates of any 

 supplemental instructions and letters which are pertinent. Give also the addressee of the instruc- 

 tions and letters if they are addressed to a person by name. (See 121.) 



B. Survey limits and dates. — Give the general locality and limits of the survey and refer to the 

 index of hydrographic sheets if one is included. Give the dates of beginning and ending field work. 

 If the survey makes a junction with prior surveys, mention these by registry numbers, dates, and 

 scales; and if an index of sheets is not furnished, list by registry numbers all contemporary surveys 

 with which junction is made. 



