796 HYDEOGRAPHIC MANUAL PaGE 752 



(k) Inaccurate transfer of the shoreline from the topographic survey. 



(/) Failure to have some of the operations checked, or failure to enter in the place provided the 

 initials of the person performing or checking the operation. ' • 



(m) The use of too hard a pencil. 



(n) The omission of a reference triangulation station and the geographic datum. 



(o) The omission of the minus sign from soundings above the sounding datum; the low- water 

 line incorrectly drawn with reference to the half -foot soundings above and below the sounding datum. 



(p) The omission of important notes which appear only on the boat sheet, having been omitted 

 from the Sounding Record. 



(q) Inking the low-water line (this should be in pencil) . 



796. Shipment to Washington Office 



Completed smooth sheets shall be shipped to the Washington Office only in special 

 metal or heavy cardboard tubes, which may be obtained on requisition. For shipment, 

 smooth sheets shall never be rolled to a diameter smaller than 4 inches, and shall be 

 forwarded by registered parcel post or express. The boat sheet shall be shipped 

 separately. (See also 836.) 



Each smooth-sheet shipment shall be accompanied by a copy of the transmitting 

 letter (Form 413), on which it is listed, the original being forwarded under separate 

 cover. 



