Matthew Fontaine Maury, the Pathfinder of the Seas

Name: Matthew Fontaine Maury, the Pathfinder of the Seas
Author: Lewis, Charles Lee

Lewis, Charles Lee

Maury, Matthew Fontaine, 1806-1873

Month of issue.
        Date of printing.
        Foundation of chart.
   =6=  Explanation of symbols:
            (_a_) Derelicts and wrecks.
            (_b_) Drifting buoys.
            (_c_) Icebergs and field ice.
            (_d_) Radio stations.
            (_e_) Magnetic variation.
            (_f_) Ocean currents.
            (_g_) Storm tracks.
            (_h_) Prevailing winds and calms.
            (_i_) Scale of wind percentages.
  =20=  Explanation of inset chart pertaining to normal reduced
          barometric pressure and normal temperature for the month.
  =21=  Inset chart showing isobars and isotherms for the month; also
          annual rate of change in the variation of the compass.
   =1=  Average conditions of wind and weather during the month.
   =9=  Local weather.
   =4=  U. S. storm-warning flags and explanation of use.
  =19=  Storm signals for Great Britain and France.
  =22=  Inset chart showing percentages of gales.
        Storm tracks.
        Wind roses graphically presenting average wind directions and
          percentages of calms and light airs.
        Lines of equal magnetic variation for the epoch 1925.
  =13=  Lag in U. S. naval radio time signals.
   =3=  North Atlantic Lane Routes—United States.
   =7=  North Atlantic Lane Routes—Canada.
        Various steamer routes.
        Various sailing vessel routes.
        Lines of equal fog frequency.
        Current arrows.
        Trade-wind limits.
        Compass rose (true).
        Magnetic equator.
        Various drifts of derelicts and buoys.
   =5=  U. S. submarine warning flag.
  =11=  Communication via U. S. Coast Guard stations.
  =12=  Note to observers relating to Hydrographic Office publications
          and blanks for reporting information.
  =15=  H. O. publications obtainable at the Panama Canal.
  =16=  List of Branch Hydrographic Offices.
  =17=  Equator crossings in the North Pacific Ocean for sailing
          vessels.
        Sources of hydrographic and meteorological information.
  =14=  Note regarding percentage of fog.
   =2=  Key to storm tracks shown on chart.
  =10=  Currents north of the Bahamas.
   =8=  Notes to observers.
  =23=  U. S. radio-compass stations.
  =18=  Note on counter equatorial current.

                                 BACK

  Fog at sea.


                            CURRENT REPORTS

On the Current Reports to the Hydrographic Office the set and drift
should be the difference between the dead reckoning position (corrected
for all known errors except current) and the position determined by
astronomical or other fixes.

Blank forms and envelopes may be obtained from any Branch Hydrographic
Office or from the main office in Washington.


                DATE ON WHICH AN OBSTRUCTION IS SIGHTED

Public-domain text, read in full here on John Shaqi.

Opening the text

Matthew Fontaine Maury, the Pathfinder of the SeasLewis, Charles Lee

History

Matthew Fontaine Maury, the Pathfinder of the Seas

Lewis, Charles Lee

Maury, Matthew Fontaine, 1806-1873

Month of issue.
        Date of printing.
        Foundation of chart.
   =6=  Explanation of symbols:
            (_a_) Derelicts and wrecks.
            (_b_) Drifting buoys.
            (_c_) Icebergs and field ice.
            (_d_) Radio stations.
            (_e_) Magnetic variation.
            (_f_) Ocean currents.
            (_g_) Storm tracks.
            (_h_) Prevailing winds and calms.
            (_i_) Scale of wind percentages.
  =20=  Explanation of inset chart pertaining to normal reduced
          barometric pressure and normal temperature for the month.
  =21=  Inset chart showing isobars and isotherms for the month; also
          annual rate of change in the variation of the compass.
   =1=  Average conditions of wind and weather during the month.
   =9=  Local weather.
   =4=  U. S. storm-warning flags and explanation of use.
  =19=  Storm signals for Great Britain and France.
  =22=  Inset chart showing percentages of gales.
        Storm tracks.
        Wind roses graphically presenting average wind directions and
          percentages of calms and light airs.
        Lines of equal magnetic variation for the epoch 1925.
  =13=  Lag in U. S. naval radio time signals.
   =3=  North Atlantic Lane Routes—United States.
   =7=  North Atlantic Lane Routes—Canada.
        Various steamer routes.
        Various sailing vessel routes.
        Lines of equal fog frequency.
        Current arrows.
        Trade-wind limits.
        Compass rose (true).
        Magnetic equator.
        Various drifts of derelicts and buoys.
   =5=  U. S. submarine warning flag.
  =11=  Communication via U. S. Coast Guard stations.
  =12=  Note to observers relating to Hydrographic Office publications
          and blanks for reporting information.
  =15=  H. O. publications obtainable at the Panama Canal.
  =16=  List of Branch Hydrographic Offices.
  =17=  Equator crossings in the North Pacific Ocean for sailing
          vessels.
        Sources of hydrographic and meteorological information.
  =14=  Note regarding percentage of fog.
   =2=  Key to storm tracks shown on chart.
  =10=  Currents north of the Bahamas.
   =8=  Notes to observers.
  =23=  U. S. radio-compass stations.
  =18=  Note on counter equatorial current.

                                 BACK

  Fog at sea.


                            CURRENT REPORTS

On the Current Reports to the Hydrographic Office the set and drift
should be the difference between the dead reckoning position (corrected
for all known errors except current) and the position determined by
astronomical or other fixes.

Blank forms and envelopes may be obtained from any Branch Hydrographic
Office or from the main office in Washington.


                DATE ON WHICH AN OBSTRUCTION IS SIGHTED

Public-domain text, read in full here on John Shaqi.

Matthew Fontaine Maury, the Pathfinder of the Seas

Matthew Fontaine Maury, the Pathfinder of the Seas

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