Page Column 



901 1 3rd entry from bottom. Add dash( ) at end cf entry. 



2 Under "Dividers, spacing", capitalize Description . 



902 2 Under "motor, starting", correct ref. is 5267(i) . 



904 1 18th entry. For requeirements read requirements . 



905 2 Under "Equipment and instrument (s)". 6th entry. Delete "s" from "Surveys". 



906 2 Under "Field examinations", for Submittal read Submission . 



907 1 Flagstaff, definition . Change hyphen(-) to comma(,). 



2 Under "Geographic names" for Consulation read Consultation . 



908 1 Government services, etc. Ref. no. is 913$(B)(l) . 



2 "Half-cosecants" and "Half- tangents" ( table kl ) in parentheses. 



910 1 4th entry. For linit read limit . 



Under "Hydrographic survey records". Pluralize Requirements . 



911 1 Under "Instruments", for invnetory read inventory . 



2 Interval between soundings. 1st cross-reference is Echo sounding frequency . 

 5th entry under K. Begin investigated vdth a I.e. letter. 



912 1 10th entry from bottom. Begin standardization with a I.e. letter. 

 2 1st entry above "Leaks, etc.". Delete "s" from "Weights". 



914 1 Memoranda, daily. For "for use n" read for use in . 



915 ,1 Numbers. In 3rd indented entry aline "Position" vertically below 



"enunciated", and insert comma(,) after "hydrographic". 

 Office work. For progeess read progress . 



2 Under "Oscillator" insert heavy dash( ) after 312 Fathometer — — . 



Paperweights. Insert comma(,) after Lead shot '- — , . 

 Photogrammetry. Change "surveying" to surveys ) inside parentheses. 

 Under "Plane coordinate(s)", begin unad.justed with a I.e. letter. 

 Under "Plotting", delete the hyphen(-) from^ dead reckoning . 

 Under "Progress sketches'', capitalize Scale . 



Under "Publications", add heavy dash( ) after C. & G. S. . 



5th entry. Delete the hyphen(-) from dead reckoning . 



Under "R.A.R. distances". Insert eomma(,) after "of" in 1st indented entry. 



Under "R.A.R. equipment, ship". Capitalize Operation cycle . 



R.A.R. recorded in Bomb Record. For ot read not . 



Last entry. For charonograph read chronograph . 



Under "Reflection of sound in a homogeneous medium", capitalize Effect . 



Registry numbers of surveys. For munbers read numbers . 



4th entry. For propellor read propeller . 



Under "Salinity determination", 11th entry is Records required . 



Under "Sediments". Aline "Classification" vertically above "Descriptive". 



Under "Sextant angles. Horizontal", aline "Measuring" below "Large", 



1st entry. Insert cQmma(,) after "navigating". 



Shoals, Isolated . Insert comma(,) after "surveying". 



Smooth sheet, Drafting, etc. To the cross-reference add "and Lettering". 

 8th entry from bottom. Delete the entry "paper (continued)". 



927 1 Smooth sheet(s), R.A.R. Insert heavy dash( ) after R.A.R. 



Under "Smooth sheet(s)", two consecutive entries are Verification 



of , report and Verification of .statistics . 



5th entry from bottom. Delete the parenthesis (() at beginning of line. 



929 1 Sounding(s), Frequency of. Cross-reference is Echo sounding frequency . 

 2 Sounding line jumps. Begin , iumps with a I.e. letter. 



7th entry from bottom. Delete the entry "Sounding line(s)". 



930 1 6th entry from bottom. For nformation read information . 



2 Sounding Record(3), Reduction of soundings. Last part of eross-referenee 

 is Echo soundings, corrections to . 



931 1 Last entry. Change page no. from 946 to 646 . 

 2 Stack, definition. Add C to ref. no. 8534C . 



Star sight records, transmittal. Begin records with a I.e. letter. 



932 1 1st entry should read Station(s). control Continued . 



Stylus, chronograph. In the cross-reference, delete the comma(,). 

 2 Under "Sun sights", aline "Dead-reckoning" vertically below "Altitude". 



933 2 3rd entry. Capitalize Large — - . 



934 1 Teraperature(s) , Seasonal. Capitalize all Seasonal entries. 



935 1 Under "312 Fathometer tachometer", capitalize three entries beginning with 



Conputation , Record, and Verification , respectively. 



936 2 Traverse station(sT^ Delete Is) from Definition . 



Triangle of error. For Tiangle read Triangle . 

 936 2 Under "Triangulation, Coastal". 1st entry, for shorline read shoreline . 

 938 1 4th entry from bottom. Hyphenate divided word "Sounding". 



Last entry. 4th word is of . 

 940 1 Wire-drag. Delete the 2nd entry of this, preceding "surveys". 



Last entry. Delete the second hyphen(-) between "in" and "speed". 



