Celestial Navigation, Papers Selected from NAVIGATION

A Collection of Articles from NAVIGATION, The Journal of The Institute of NavigationCelestialNavigationIn Cooperation with the Foundationfor the Promotion of the Art of NavigationTitle Author Issue1 RESURRECTING THE ANALEMMA Samuel G. Shaw Vol. 49, No. 1, 20022 AUTHOR’S REPLY TO COMMENTS ON “THE CELESTIALNAVIGATION OF CHRISTOPHER COLUMBUS”3 COMMENTS ON “THE CELESTIAL NAVIGATION OFCHRISTOPHER COLUMBUS”4 THE CELESTIAL NAVIGATION OF CHRISTOPHERCOLUMBUS5 THE DIRECT FIX OF LATITUDE AND LONGITUDE FROMTWO OBSERVED ALTITUDES6 LUNAR DISTANCE METHOD IN THE 19th CENTURY:A SIMULATION OF J. SLOCUMS OBSERVATION7 A NAVIGATION SOLUTION INVOLVING CHANGES TOCOURSE AND SPEED8 DETERMINING THE POSITION AND MOTION OF A VESSELFROM CELESTIAL OBSERVATIONS9 TEMPERATURE DEPENDENCE OF SEXTANT INDEXERROR10 PRACTICAL SAILING FORMULAS FOR RHUMB-LINETRACKS ON AN OBLATE EARTHArne B. Molander Vol. 46, No. 3, 1999Keith A. Pickering Vol. 46, No. 3, 1999Arne B. Molander Vol. 44, No. 4, 1997Stanley W. Gery Vol. 44, No. 1, 1997Siebren Y. Van der Werf Vol. 44, No. 1, 1997George H. Kaplan Vol. 43, No. 4, 1996George H. Kaplan Vol. 42, No. 4, 1995R. Egler Vol. 42, No. 3, 1995George H. Kaplan Vol. 42, No. 2, 199511 MINIMIZING ERRORS IN CELESTIAL POSITIONING Paul F. Ross Vol. 41, No. 3, 199412 PILOTING WITH CELESTIAL ALGORITHMS Thomas R. Metcalf andFrederic T. Metcalf13 CAPT. P. V. H. WEEMS AND THE TRANSITION FROMMARINE TO AIR NAVIGATION14 A SIMPLIFIED SIGHT REDUCTION METHOD FORCELESTIAL NAVIGATION15 AN EXTENSION TO THE OVERDETERMINED CELESTIALFIXVol. 41, No. 2, 1994G. D. Dunlap Vol. 40, No. 1, 1993John D. Woodworth Vol. 39, No. 4, 1992Thomas R. Metcalf Vol. 39, No. 4, 199216 AN ANALYSIS OF ADMIRAL PEARY’S SLEDGING SPEEDS William E. Molett Vol. 39, No. 3, 199217 HISTORY OF AERIAL POLAR NAVIGATION Joseph N. Portney Vol. 39, No. 2, 199218 ADVANCING CELESTIAL CIRCLES OF POSITION Thomas R. Metcalf Vol. 38, No. 3, 199119 ON THE OVERDETERMINED CELESTIAL FIX Thomas R. Metcalf andFrederic T. Metcalf20 ANALYSIS OF WHETHER PEARY EMPLOYEDAMUNDSEN’S METHOD OF OBTAINING COMPASSHEADINGVol. 38, No. 1, 1991William E. Molett Vol. 37, No. 1, 199021 COMMENTS ON COL. MOLETT’S ANALYSIS Thomas D. Davies Vol. 37, No. 1, 199022 OVERDETERMINED CELESTIAL FIX BY ITERATION Robert W. Severance Vol. 36, No. 4, 198923 ANALYSIS OF ADMIRAL PEARY’S TRIP TO THE NORTHPOLEWilliam E. Molett Vol. 36, No. 2, 198924 SMOOTHING A NOON SIGHT Robert W. Severance Vol. 35, No. 2, 198825 THE WORLD’S FIRST SEXTANTS Saul Moskowitz Vol. 34, No. 1, 1987

Title Author Issue26 WHERE IN THE WORLD ARE WE? J. F. Roeber Vol. 33, No. 4, 198627 AUTONOMOUS SATELLITE NAVIGATION USINGOBSERVATIONS OF STARLIGHT ATMOSPHERICREFRACTIONRobert L. White, Sam W.Thurman, Frank A. BarnesVol. 32, No. 4, 198528 POSITION FROM OBSERVATION OF A SINGLE BODY James N. Wilson Vol. 32, No. 1, 198529 MATHEMATICAL 3-ARM PROTRACTOR W. B. Ruhnow Vol. 31, No. 1, 198430 ACCURACY: WHAT IS IT? WHY DO I NEED IT?HOW MUCHDO I NEED?31 THE WIND AND CURRENT CHART SERIES PRODUCED BYMATTHEW FONTAINE MAURYJ. F. Roeber Vol. 30, No. 2, 1983Marc I. Pinsel Vol. 28, No. 2, 198132 A HANDHELD COLLISION AVOIDANCE AID J. D. Luse Vol. 28, No. 1, 198133 AIDS TO NAVIGATION POSITIONING PROJECT James E. Smith, Jr. Vol. 28, No. 1, 198134 AN ANALYTICAL SOLUTION OF THE TWO STAR SIGHTPROBLEM OF CELESTIAL NAVIGATION35 K-12 METHOD BY CALCULATOR: A SINGLE PROGRAMFOR ALL CELESTIAL FIXES, DIRECTLY OR BY POSITIONLINESJames A. Van Allen Vol. 28, No. 1, 1981S. Kotlaric Vol. 28, No. 1, 198136 MOST PROBABLE FIX POSITION REDUCTION G. D. Morrison Vol. 28, No. 1, 198137 CONCERNING OUT-OF-VERTICAL ERROR T. D. Davies Vol. 28, No. 1, 198138 UNAMBIGUOUS TWO BODY FIX METHODS DERIVEDFROM CRYSTALLOGRAPHIC PRINCIPLESTorben Kjer Vol. 28, No. 1, 198139 VERTICAL SEXTANT ANGLES SHORT OF THE HORIZON W. C. Marlow Vol. 28, No. 1, 198140 JOHN CHURCHMAN AND THE LONGITUDE PROBLEM Charles H. Cotter Vol. 27, No. 3, 198041 GENERAL CONVENTIONS AND SOLUTIONS-THEIR USE INCELESTIAL NAVIGATIONG. G. Bennett Vol. 26, No. 4, 197942 SOME REMARKS ON SIGHT REDUCTION WITH MATRICES C. Dewit Vol. 26, No. 3, 197943 SIMILARITIES BETWEEN CLASSICAL CELESTIALNAVIGATION AND ELECTROSTATIC GYRO NAVIGATIONJ. N. Schmidt Vol. 26, No. 3, 197944 ON ASSUMED ALTITUDES D. W. Kerst Vol. 26, No. 3, 197945 A COMPLETELY PROGRAMMABLE METHOD OFCELESTIAL NAVIGATION46 A NEW METHOD FOR PLOTTING THE POSITION LINE:THE GOLEM SOLUTION47 HAND HELD CALCULATORS-AN EVALUATION OF THEIRUSE FOR CELESTIAL NAVIGATION48 LONGITUDE BY LUNAR OBSERVATIONS AND THEPOCKET CALCULATOR49 R1-D1: SOME IMPLICATIONS OF SHIP AUTOMATION ONORGANIZATION, TRAINING, DESIGN AND LOGISTICS50 SIGHT REDUCTION WITH MATRICES Watkins. R. and Janiczek.P. M.51 A METHOD FOR DIRECT DETERMINATION OF TIME OFTRANSIT OF A CELESTIAL BODY WHEN THE OBSERVERIS MOVING52 THE METHOD OF ASSUMED ALTITUDES: A NEWAPPROACH TO AN OLD ARTC. T. Daub Vol. 26, No. 1, 1979E. Gradsztajn Vol. 26, No. 1, 1979A. Bralove Vol. 25, No. 4, 1978D. W. Kerst Vol. 25, No. 4, 1978C. W. Koburger, Jr. Vol. 25, No. 4, 1978Vol. 25, No. 4, 1978R. W. Peach Vol. 25, No. 3, 1978T. D. Davies Vol. 25, No. 3, 197853 THOMAS GODFREY’S QUADRANTS C. H. Cotter Vol. 25, No. 1, 197854 NEW DMAHC NAVIGATION PUBLICATIONS E. B. Brown Vol. 24, No. 3, 197755 A METHOD FOR COMPACTING NAVIGATION TABLES J. B. Jalickee and W. J.KlepczynskiVol. 24, No. 2, 197756 LONGITUDE WITHOUT TIME J. W. Luce Vol. 24, No. 2, 197757 ON THE COST OF MAKING MISTAKES IN NAVIGATION O. D. Anderson Vol. 24, No. 2, 197758 A NEW METHOD OF CELESTIAL NAVIGATION R. E. Ogilvie Vol. 24, No. 1, 197759 TWO BODY FIXES BY CALCULATOR M. F. A’Hearn and G. S.Rossano60 THE ALMANACS—YESTERDAY, TODAY AND TOMORROW P. K. Seidelmann, P. M.Janiczek and R. F. HauptVol. 24, No. 1, 1977Vol. 23, No. 4, 1976

Title Author Issue61 THE COAST GUARD TWO PULSE LORAN-CCOMMUNICATIONS SYSTEMD. A. Feldman, M. A. Lettsand R. J. WenzelVol. 23, No. 4, 197662 THE THANKLESS NAVIGATOR T. D. Nicholson Vol. 23, No. 4, 197663 TWO CENTURIES OF NAUTICAL INSTRUMENTS IN JAPAN T. Mozai Vol. 23, No. 4, 197664 DIRECT METHODS OF LATITUDE AND LONGITUDEDETERMINATION BY MINI-COMPUTER65 EVALUATION OF SEVERAL NAVIGATION ALGORITHMSFOR APPLICATION TO GENERAL AVIATIONC. Wight Vol. 23, No. 2, 1976B. Conrad, C. T. Jackson,Jr. and A. J. KorsakVol. 23, No. 1, 197666 FINDING LATITUDE AND LONGITUDE BY CALCULATORS C. Fox Vol. 22, No. 4, 197567 HAND HELD CALCULATOR TECHNOLOGY APPLIED TO ANADVANCED OMEGA RECEIVERB. N. Gaon Vol. 22, No. 4, 197568 LONGITUDE WITHOUT TIME D. W. Kerst Vol. 22, No. 4, 197569 NAVIGATION APPLICATIONS OF THE HP-65 CALCULATOR K. E. Newcomer Vol. 22, No. 2, 197570 THE ACCURACY OF CELESTIAL FIXES AS COMPARED TONAVSAT POSITIONS BY LEAST SQUARES ADJUSTMENTH. F. Van Der Grinten Vol. 22, No. 2, 197571 A DIP SHORT NOMOGRAM M. F. A’Hearn Vol. 21, No. 3, 197472 PSYCHOLOGICAL EFFECTS IN CELESTIAL NAVIGATION R. M. Leve Vol. 21, No. 1, 197473 THE NAV-AID: A CALCULATOR FOR NAVIGATION R. G. Hirsch and R. L.Charlton74 THE USE OF THE HP-35 CALCULATOR FOR SIGHTREDUCTION75 H. O. 229 INTERPOLATION E. B. Brown and J. J.Speight76 A DAY/NIGHT REMOTE-CONTROLLED LLLTV CAMERA-SEXTANT SYSTEM FOR GENERAL AND CELESTIALNAVIGATION77 THE DEVELOPMENT OF THE ARTIFICIAL HORIZON FORCELESTIAL NAVIGATIONVol. 21, No. 1, 1974S. Rigby Vol. 21, No. 1, 1974S. Feldman, G. Barton, B.Katz and R. WilkinsonVol. 20, No. 3, 1973Vol. 20, No. 2, 1973S. Moskowitz Vol. 20, No. 1, 197378 CELESTIAL FIX-INTERNAL OR EXTERNAL? Alton B Moody Vol. 19, No. 4, 197279 SIGHT REDUCTION USING THE PORTABLE SEXTANTCOMPUTER SYSTEM80 COMPUTER SIGHT REDUCTION BASED ONINTERSECTION OF EQUAL ALTITUDE CIRCLES81 NAVIGATIONAL PLANNING AND THE USE OF SPECIALTECHNIQUESS. Feldman, P. K.Seidelmann, E. D.Stephenson, and H. C.KettsVol. 19, No. 4, 1972R. W. Flynn Vol. 19, No. 1, 1972Byron E. Franklin andErnest B. BrownVol. 19, No. 1, 197282 A DIGITAL READ-OUT DAY AND NIGHT MARINE SEXTANT Sidney Feldman Vol. 18, No. 4, 197183 NEW SHORT METHOD TABLES (KI 1) FOR DIRECTFINDING OF A TWO STAR FIX WITHOUT USE OFALTITUDE DIFFERENCE METHOD84 EXAMPLES OF MOON SIGHTS TO OBTAIN TIME ANDLONGITUDEStjepo Kotlaric Vol. 18, No. 4, 1971DR. FRANCES W. WRIGHT Vol. 18, No. 3, 197185 LOCAL HOUR ANGLE OF ARIES TABLES Frederick L. Devereux, Jr. Vol. 18, No. 2, 197186 NAVIGATION AT THE PRIME MERIDIAN G. Gebel and B. Matthews Vol. 18, No. 2, 197187 TIME AND NAVIGATION Dr. R. L. Duncombe and R.F. HauptVol. 17, No. 4, 197088 USE OF PLANETARIA IN NAVIGATION INSTRUCTION Major Kenneth W. Brotnov Vol. 17, No. 4, 197089 CERTAIN Hc/Z COMPUTATION POSSIBILITIES Alfred H. Kerrick Vol. 17, No. 3, 197090 NAVIGATION BY DEFINITION N. W. Emmott Vol. 17, No. 3, 197091 TRIANGULATION THEORY AND TECHNIQUES Cherokee C. Johnson Vol. 17, No. 3, 197092 STONE HENGE AND THE PIRI RE’IS MAP Alan R. Gillespie Vol. 17, No. 2, 197093 THE METHOD OF LUNAR DISTANCES ANDTECHNOLOGICAL ADVANCESaul Moskowitz Vol. 17, No. 2, 197094 PRECOMP NAVIGATION Capt. P. V. H. Weems, USN(Ret.)95 FUTURE ASPECTS OF MARINE NAVIGATION FOR SMALLCRAFTVol. 16, No. 4, 1969Vernon I. Weihe Vol. 16, No. 2, 1969

Title Author Issue96 MICRO COMPASS FOR SMALL BOAT NAVIGATION Marvin Taylor Vol. 16, No. 2, 196997 LONGITUDE WITHOUT TIME Bruno Ortlepp Vol. 16, No. 1, 196998 NAVIGATING TO THE NORTH POLE-A SURFACETRAVERSEMajor Gerald R. Pitzl,USMCR99 NIGHT VISION NAVIGATION G. D. Dunlap and Oliver J.Edwards100 SMALL CRAFT OPERATION ON THE INTRACOASTALWATERWAY OF THE GULF AREAP/C George K. Holland, N,USPSVol. 16, No. 1, 1969Vol. 16, No. 1, 1969Vol. 16, No. 1, 1969101 YACHT NAVIGATION Ben Warriner Vol. 16, No. 1, 1969102 A PRACTICAL MECHANICAL CALCULATOR SPHERICALTRIGONOMETRYMitchell E. Timin and AlanM. Schneider103 IRRADIATION AND MANUAL NAVIGATION Richard F. Haines andWilliam H. Allen104 NOTE ON DETERMINING RANGE FROM SEXTANTALTITUDE105 ON THE ACCURACY OF CELESTIAL MPP’S IN AIRNAVIGATION106 SIGHT REDUCTION TABLES FOR ORBITAL PLANEDETERMINATIONVol. 15, No. 4, 1968Vol. 15, No. 4, 1968Dr. William H. Guier Vol. 15, No. 4, 1968Major Ronald A. Briggs,USAF107 GREAT CIRCLE ROUTE Lieut. Jack O. Horton, Jr.,USNRVol. 15, No. 4, 1968William P. Devereux Vol. 15, No. 4, 1968Vol. 15, No. 3, 1968108 TRUE AZIMUTH CALCULATION Michael C. Hutchins Vol. 15, No. 3, 1968109 PROGRESS IN PRECISION TIMEKEEPING AND TIMEDISTRIBUTIONR. Glenn Hall Vol. 15, No. 2, 1968110 GREAT CIRCLE SAILING (GRAPHIC SOLUTION) William M. Fraser Vol. 15, No. 1, 1968111 ANALYSIS OF THE CELESTIAL PLOT IN MARINENAVIGATION112 MARINE NAVIGATION: WHERE WE STAND-WHAT NEEDSTO BE DONEErnest B. Brown Vol. 14, No. 4, 1967G. D. Dunlap Vol. 14, No. 4, 1967113 NAVIGATION OF PLEASURE BOATS R. R. Blandford Vol. 14, No. 4, 1967114 THE NAUTICAL ALMANAC IN ITS SEVENTH THIRD OF ACENTURYD. H. Sadler Vol. 14, No. 4, 1967115 A SMALL BOAT NAVIGATION SYSTEM Allan C. Bernstein Vol. 14, No. 3, 1967116 AN ENGINEERING APPROACH TO THE MATHEMATICS OFCELESTIAL NAVIGATION117 USE OF A SMALL COMPUTER AS A CELESTIALNAVIGATION AIDJoseph W. Little Vol. 14, No. 3, 1967D. W. Range and R. N.Southworth118 THE FRANKLIN PILOTING TECHNIQUE Ernest B. Brown and BryonE. FranklinVol. 14, No. 3, 1967Vol. 14, No. 2, 1967119 MARINE USER’S MODIFICATIONS TO THE AIR ALMANAC Ernest B. Brown Vol. 14, No. 1, 1967120 THREE DIMENSION CELESTIAL NAVIGATION Loren E. DeGroot and JohnLarsen121 AN ASTRONOMICAL GUIDANCE SYSTEM FOR AIRNAVIGATION122 CELESTIAL NAVIGATION PROCEDURES Cdr. Robert E. Williams,USESSA123 SIGHT REDUCTION TABLES FOR MARINE NAVIGATION J. H. Blythe, Dr. R. L.Duncombe, and D. H.SadlerVol. 13, No. 4, 1966Col. R. Genty Vol. 13, No. 3, 1966Vol. 13, No. 2, 1966Vol. 13, No. 2, 1966124 PROPOSED NAUTICAL UNITS OF LENGTH AND TIME Dr. John C. Bellamy Vol. 13, No. 1, 1966125 CELESTIALLY REFERENCED ELECTRONIC SPACETRACKING126 NAVIGATIONAL REQUIREMENTS AND METHODS OFRECREATIONAL BOATMEN127 SEXTANT SIGHTING PERFORMANCE FOR SPACENAVIGATION USING SIMULATED AND REAL CELESTIALTARGETSRobert Irving Vol. 12, No. 4, 1965Cdr. John E. Everson, N,USPSVol. 12, No. 4, 1965Bedford A. Lampkin Vol. 12, No. 4, 1965128 FROM SIMPLE QUADRANT TO SPACE SEXTANT Saul Moskowitz Vol. 12, No. 3, 1965

Title Author Issue129 LUNAR DISTANCES AND OCCULTATIONS USING H. O. 214 D. D. Williams Vol. 12, No. 2, 1965130 NEWEST ONE-ENTRY NAVIGATION TABLES Captain G. P. Hadjilias, N.C., M. I. N.131 PRINTING OF ASTRONOMICAL AND SIGHT REDUCTIONTABLES132 LIMITATIONS IMPOSED ON CELESTIAL NAVIGATION DUETO INACCURACIES OF STAR POSITIONSR. L. Duncombe and R. F.HauptVol. 12, No. 2, 1965Vol. 12, No. 2, 1965Francis P. Scott Vol. 11, No. 1, 1964133 STICK CHARTS OF MICRONESIA Lt. Col. Charles J. Davis Vol. 11, No. 1, 1964134 THE “LOG” OF CELESTIAL NAVIGATION T. R. Stenberg Vol. 11, No. 1, 1964135 ERRORS AND ACCURACY OF POSITION, LOPs, ANDFIXES136 SMALL CRAFT NAVIGATION Cdr. Charles M. Bradley,USPST. R. Stenberg Vol. 10, No. 4, 1963Vol. 10, No. 4, 1963137 POLYNESIAN NAVIGATION (NOTES AND COMMENT) Capt. Brett Hilder Vol. 10, No. 2, 1963138 POLYNESIAN NAVIGATION J. P. Frankel Vol. 09, No. 1, 1962139 PLOTTING THE FUTURE COURSE OF MARINE CELESTIALNAVIGATION140 CELESTIAL SIGHTING THROUGH THE SUBMARINEPERISCOPEGene R. Marner Vol. 7, No. 4, 1960Lt. Cmdr. Robert Irving,USNVol. 7, No. 2 & 3, 1960141 PRINCE HENRY THE NAVIGATOR Norman J. W. Thrower Vol. 7, No. 2 & 3, 1960142 SURVIVAL POSITION LOCATION USING STAR SIGHTING E. H. Sharkey Vol. 6, No. 8, 1959-1960143 A PROPOSAL FOR A NEW METHOD OF CELESTIAL SIGHTREDUCTION AND LINE-OF-POSITION PLOTTINGDan N. Hurwitz Vol. 6, No. 7, 1959144 THE RHUMB LINE ON THE ELLIPSOIDAL EARTH Ralph Hoyt Bacon Vol. 6, No. 7, 1959145 CELESTIAL NAVIGATION WITHOUT A VERTICALREFERENCE146 THE LIMACON OF PASCAL AS A BASIS FOR COMPUTEDAND GRAPHIC METHODS OF DETERMININGASTRONOMIC POSITIONSPhillip R. Burton Vol. 6, No. 5, 1959Alfred H. Kerrick Vol. 6, No. 5, 1959147 THE NEW BOWDITCH: A REVIEW Grenville D. Zerfass Vol. 6, No. 5, 1959148 POLYNESIAN NAVIGATIONAL STONES Capt. Brett Hilder Vol. 6, No. 4, 1958-1959149 AN AUTOMATIC ASTRO COMPASS David B. Nichinson Vol. 6, No. 3, 1958150 A PROPOSAL FOR A SURVIVAL SEXTANT Leonard E. Gray Vol. 6, No. 2, 1958151 HAROLD GATTY AS WE KNEW HIM Capt. P. V. H. Weems, USN(Ret.)Vol. 6, No. 2, 1958152 THE SEARCH FOR SELF-CONTAINED NAVIGATION AIDS Richard Y. Miner Vol. 6, No. 2, 1958153 THE ZENITH INDICATOR POSITION INSTRUMENT Lt. J. D. Bottoms, USN Vol. 6, No. 2, 1958154 AN UNIDENTIFIED MARINER’S ASTROLABE N/A Vol. 5, No. 8, 1957-1958155 THE DISCOVERY OF THE LONGITUDE Norman J. W. Thrower Vol. 5, No. 8, 1957-1958156 THE TRUE DISTANCE AND AZIMUTH COMPUTER FORPOLAR NAVIGATIONSheridan L. Hall Vol. 5, No. 8, 1957-1958157 ANTARCTIC NAVIGATION Capt. Charles W. Thomas,USCG158 PRECISION CELESTIAL NAVIGATION IN HIGH-SPEED,HIGH-ALTITUDE AIRCRAFTMajor Harold F. Korger,USAF159 A FORMAT FOR A RAPID MULTIPLE-STAR-FIX SOLUTION Lieutenant (j.g.) JoSwerling, Jr., USNRVol. 5, No. 7, 1957Vol. 5, No. 6, 1957Vol. 5, No. 4, 1956160 VECTOR DIAGRAMS FOR SAILBOAT DEAD RECKONING Leonard E. Gray Vol. 5, No. 4, 1956161 AN IMPROVED PROTRACTOR Lieutenant Commander C.H. Blair, USN162 CELESTIAL NAVIGATION IN HIGH LATITUDES Major William E. Molett,USAFVol. 5, No. 2, 1956Vol. 5, No. 2, 1956

Title Author Issue163 COMPUTERS FOR MOTION OF THE BODY ANDOBSERVERCaptain Martin Berkovitz,USAFVol. 5, No. 2, 1956164 PROBLEMS ENCOUNTERED IN SURVIVAL NAVIGATION Glenn M. Hawkins Vol. 5, No. 2, 1956165 POLAR (ICECAP) NAVIGATION Major Palle Mogensen, U.S. ArmyVol. 5, No. 1, 1956166 THE PLANE AND GREAT CIRCLE SAILINGS, PART 11 Peter H. Selby Vol. 5, No. 1, 1956167 UNIFICATION OF THE ABRIDGED NAUTICAL ALMANACAND THE AMERICAN NAUTICAL ALMANACG. M. Clemence and D. H.SadlerVol. 5, No. 1, 1956168 THE PLANE AND GREAT CIRCLE SAILINGS Peter H. Selby Vol. 4, No. 8, 1955169 HIGH PRECISION COMPUTER FOR AUTOMATICSOLUTION OF THE CELESTIAL TRIANGLEGene R. Marner Vol. 4, No. 7, 1955170 KEPLER William R. Cagle Vol. 4, No. 7, 1955171 ON THE GEOMETRICAL SOLUTION OF THENAVIGATIONAL TRIANGLEJohn A. Russell Vol. 4, No. 6, 1955172 PUTTING THE MOON IN THE POCKET ALMANAC Robert W. Byerly Vol. 4, No. 6, 1955173 HALF CENTURY OF NAVIGATION 1900-1950 Captains P. V. H. Weems,USN (Ret.)Vol. 4, No. 5, 1955174 THE GREEN FLASH W. H. Forthman Vol. 4, No. 5, 1955175 ALFONSO THE WISE William Potter Vol. 4, No. 4, 1954176 NAVIGATOR’S POCKET ALMANAC N/A Vol. 4, No. 4, 1954177 NEW TECHNIQUES FOR THE RUNNING FIX Lt. Robert W. Beard, USNR Vol. 4, No. 4, 1954178 WHITHER BOUND, NAVIGATOR? Commander Alton B.Moody, USNRVol. 4, No. 4, 1954179 POLAR COMPASSES Samuel M. Burka Vol. 4, No. 3, 1954180 RECENT DEVELOPMENTS IN POLAR NAVIGATION Major William E. Molett,USAF181 AN EARLY BUREAU OF LONGITUDE: PEIRESC INPROVENCE182 IRRADIATION AND REFRACTION AT LOW ALTITUDES ANDTHE WORKING NAVIGATORVol. 4, No. 3, 1954Seymour L. Chapin Vol. 4, No. 2, 1954Captain H. H. Shufeldt,USNRVol. 4, No. 2, 1954183 THE NAVIGATOR’S POCKET ALMANAC Paul E. Wylie Vol. 4, No. 2, 1954184 DO YOU SAY WHAT YOU MEAN? Commnder Alton B. Moody,USNRVol. 4, No. 1, 1954185 METHODS USED IN CELESTIAL NAVIGATION Fred Franklin Vol. 4, No. 1, 1954186 PRECOMPUTED CELESTIAL DATA FOR HIGH SPEEDAIRCRAFTMajor Robert Sullivan,USAFVol. 4, No. 1, 1954187 THE DIP OF THE HORIZON Hans Christian Freiesleben Vol. 4, No. 1, 1954188 PERSONAL EQUATION AND THE MODERN MARINESEXTANTCharles H. Smiley and MarkQuirkVol. 3, No.10, 1953189 THE POCKET NAUTICAL ALMANAC Paul E. Wylie Vol. 3, No.10, 1953190 FIXES, AND HOW TO GET OUT OF THEM Commander H. W.Dusinberre, USNVol. 3, No. 9, 1953191 NAUTICAL AND STATUTE MILE CONTROVERSY Merrill Armour Vol. 3, No. 9, 1953192 SIMPLIFIED STAR PLOTTING Commander H. W.Dusinberre, USN193 A SURVEY OF THE EFFORTS TO DETERMINE LONGITUDEAT SEA, 1660-1760. PART III: A PERFECT TIMEKEEPERVol. 3, No. 9, 1953Seymour L. Chapin Vol. 3, No. 8, 1953194 PROBLEMS OF A SMALL BOAT SKIPPER Richard S. Nye Vol. 3, No. 8, 1953195 THE NAUTICAL AND STATUTE MILE CONTROVERSY Commander E. R.McCarthy, USC&GSVol. 3, No. 8, 1953196 TRUE AZIMUTH OF POLARIS BY NOMOGRAM J. G. van de Flier Vol. 3, No. 8, 1953197 A SURVEY OF THE EFFORTS TO DETERMINE LONGITUDEAT SEA, 1660-1760. PART II: THE USE OF CELESTIALBODIESSeymour L. Chapin Vol. 3, No. 7, 1953198 ACCURACY: AN EDITORIAL COMMENT N/A Vol. 3, No. 7, 1953199 BUBBLE ACCELERATION Major Robert Sullivan,USAFVol. 3, No. 7, 1953

Title Author Issue200 H.O. 249 AND THE NEW AIR ALMANAC John Dohm Vol. 3, No. 7, 1953201 SELECTED STARS 1953 ALMANACS Commander Edwin A. Beito,USNRVol. 3, No. 7, 1953202 WHAT’S OUR SPEED? THE EVOLUTION OF SHIP-LOGS Grenville D. Zerfass Vol. 3, No. 7, 1953203 A SURVEY OF THE EFFORTS TO DETERMINE LONGITUDEAT SEA, 1660-1760204 WHAT GEOMAGNETISM MEANS TO NAVIGATORS Captain Elliott B. Roberts,USNSeymour L. Chapin Vol. 3, No. 6, 1952Vol. 3, No. 6, 1952205 A SHORT HISTORY OF THE INSTITUTE OF NAVIGATION John W. Calvert Vol. 3, No. 5, 1952206 NATHANIEL BOWDITCH AND HIS WORK Paul E. Wylie Vol. 3, No. 5, 1952207 NOTE ON THE SELECTION OF STARS FOR NAVIGATION Charles H. Smiley Vol. 3, No. 5, 1952208 SUGGESTION FOR MEASUREMENT OF REFRACTION Robert W. Byerly Vol. 3, No. 5, 1952209 CONCERNING THE APPARENT DIFFERENCE IN THE SIZEOF THE SUN AT NOON AND AT SUNSET210 CONSIDERATION OF VARIOUS TERRESTIALCOORDINATE SYSTEMS211 EXPEDITIONS OF THE FRENCH ACADEMY OF SCIENCES,1735Captain Raleigh C. Willems,USAFVol. 3, No. 4, 1952Walter B. Nash Vol. 3, No. 4, 1952Seymour L. Chapin Vol. 3, No. 4, 1952212 NATHANIEL BOWDITCH Grenville D. Zerfass Vol. 3, No. 4, 1952213 POLAR NAVIGATION Captain J. O. Sanders,USAFVol. 3, No. 4, 1952214 PRECISE ASTRONOMICAL FIXES Giles G. Healey Vol. 3, No. 4, 1952215 TIMEKEEPING Captain P. V. H. Weems,USN (Ret.)216 TWO MIRRORS: THE STORY OF THE INVENTION OF THESEXTANTVol. 3, No. 4, 1952Grenville D. Zerfass Vol. 3, No. 4, 1952217 TYCHO BRAHE Samuel Herrick Vol. 3, No. 4, 1952218 A TWILIGHT COMPUTER AND PLANISPHERE FOR HIGHLATITUDE NAVIGATION219 ATMOSPHERIC REFRACTION AT LOW ANGULARALTITUDES IN THE POLAR REGIONSJ. W. Cox and S/L K. R.Greenaway, RCAFVol. 3, No. 3, 1952Charles H. Smiley Vol. 3, No. 3, 1952220 H. O. 249 REVISED John Dohm Vol. 3, No. 3, 1952221 LUNAR PARALLAX METHOD OF ASTRO NAVIGATION J. S. Thompson Vol. 3, No. 1 & 2, 1952222 ASTRONOMICAL FORMULAE FOR USE IN NAVIGATION Charles Fox Vol. 3, No. 1 & 2, 1951223 ATMOSPHERIC REFRACTION AT LOW ANGULARALTITUDES IN THE TEMPERATE ZONESCharles H. Smiley Vol. 3, No. 1 & 2, 1951224 EARLY NAVIGATION MANUALS Grenville D. Zerfass Vol. 3, No. 1 & 2, 1951225 LOW ALTITUDE REFRACTION CORRECTION Captain Raleigh C. Willems,USAFVol. 3, No. 1 & 2, 1951226 REFRACTION NEAR THE HORIZON G. M. Clemence Vol. 3, No. 1 & 2, 1951227 THE ORIGINAL STAR FINDER Captain Gilbert T. Rude,USN (Ret.)Vol. 3, No. 1 & 2, 1951228 TRANSPOLAR CELESTIAL FOR HIGH SPEED NAVIGATION Thoburn C. Lyon Vol. 3, No. 1 & 2, 1951229 UNIFICATION OF THE AIR ALMANAC AND THE AMERICANAIR ALMANACG. M. Clemence and D. H.Sadler230 ACCURACY OF MARINE NAVIGATION Captain P. V. H. WEEMS,USN (Ret.)Vol. 3, No. 1 & 2, 1951Vol. 2, No. 10, 1951231 MIDDLE LATITUDE SAILING NEAR THE EQUATOR A. N. Black Vol. 2, No. 10, 1951232 THE ACCURACY OF OBSERVATIONS MADE WITH MARINESEXTANTSCharles H. Smiley Vol. 2, No. 10, 1951233 THE YACHTSMAN’S INTEREST IN NAVIGATION Randolph E. Tyrrel Vol. 2, No. 10, 1951

Title Author Issue234 A SHORT METHOD FOR PRECOMPUTATION Samuel Herrick Vol. 2, No. 9, 1951235 FACTS OF ASTRONOMY OF VALUE TO THE NAVIGATOR Commander Edwin A. Beito,USNRVol. 2, No. 9, 1951236 PULKOVO—OLD CAPITAL OF POSITIONAL ASTRONOMY Otto Struve Vol. 2, No. 9, 1951237 A FIX FROM ONE SIGHT Frederick Franklin Vol. 2, No. 7, 1950238 HUMAN NAVIGATOR OR BLACK BOX? Lieutenant CommanderAlton B. Moody, USNR239 NAVIGATION METHODS COMPARED Captain P. V. H. WEEMS,USN (Ret.)240 THE PFUND SKY COMPASS Lieutenant CommanderAlton B. Moody, USNR241 THE WORK OF THE NATIONAL BUREAU OF STANDARDSIN NAVIGATIONVol. 2, No. 7, 1950Vol. 2, No. 7, 1950Vol. 2, No. 7, 1950E. U. Condon Vol. 2, No. 6, 1950242 TIME AND ALMANACS G. M. Clemence Vol. 2, No. 6, 1950243 A LINE OF POSITION BY OBSERVED AZIMUTH Commander E.S. Quilter Vol. 2, No. 5, 1950244 ATMOSPHERIC REFRACTION AT LOW ANGULARALTITUDES IN THE TROPICSCharles H. Smiley Vol. 2, No. 5, 1950245 A POSITION FINDER Paul Miller, U.S.N. (Ret.) Vol. 2, No. 4, 1949246 A SIMULTANEOUS TWO-STAR FIX Charles T. Dozier Vol. 2, No. 4, 1949247 NEW TYPE 1950 NAUTICAL ALMANAC Commander Edwin A. Beito,U.S.N.R248 MIDDLE LATITUDE SAILING WHEN THE COURSECROSSES THE EQUATOR249 NAVIGATION BY THE RULE OF SIXTY Commander E. S. Quilter,U.S.N250 PRESENT STATUS OF POLAR NAVIGATION Flight Lieutenant K. R.Greenaway, R.C.A.F251 PROBLEMS OF MARINE NAVIGATION Lieutenant Charles W.Handley, U.S.M.SVol. 2, No. 4, 1949Paul E. Wylie Vol. 2, No. 3, 1949252 RECENT DEVELOPMENT IN POLAR NAVIGATION Lieutenant Command AltonB. Moody, U.S.N.RVol. 2, No. 3, 1949Vol. 2, No. 3, 1949Vol. 2, No. 3, 1949Vol. 2, No. 3, 1949253 SOME HISTORY OF H.O. 214 IN THE NETHERLANDS Ph. A. Gallas Vol. 2, No. 1, 1949254 THE TRIANGULATOR Frederick Franklin Vol. 2, No. 1, 1949255 TIMES OF SUNRISE AND OF SUNSET BY A GRAPHICALMETHODPaul E. Wylie Vol. 1, No. 12, 1948256 A “NEW LOOK” FOR THE NAUTICAL ALMANAC Ramon O. Williams Vol. 1, No. 11, 1948257 SUMMARY OF A PAPER ON THE PLACE OF NAVIGATIONIN THE COLLEGE CURRICULUMBart J. Bok Vol. 1, No. 9, 1948258 H.O. 249 Henrietta H. Swope Vol. 1, No. 7 & 8, 1947259 NAVIGATION IN THE ANTARCTIC Alton B. Moody Vol. 1, No. 7 & 8, 1947260 THE AMERICAN NAUTICAL ALMANAC AND ITSIMPROVEMENT261 NAVIGATION COMPUTER SERIES Captain P. V. H. Weems,USN (Ret.)Paul E. Wylie Vol. 1, No. 7 & 8, 1947Vol. 1, No. 6, 1947262 THE GERMAN GYRO-SEXTANT Mary R. Hunt Vol. 1, No. 6, 1947263 CRITICAL TABLES FOR CORRECTING OBSERVEDALTITUDES FOR ATMOSPHERIC REFRACTION IN POLARLATITUDES264 NIGHT SEXTANT OBSERVATIONS AGAINST A NIGHTVISION HORIZON265 NOTE ON DREISENSTOK’S METHOD IN CELESTIALNAVIGATION266 THE INFLUENCE OF THE EARTH’S ROTATION ON BUBBLESEXTANT READINGSCharles H. Smiley Vol. 1, No. 5, 1947Commander Wm. J. Catlett,JrVol. 1, No. 5, 1947N. Wyman Stoker Vol. 1, No. 5, 1947J. J. Green Vol. 1, No. 5, 1947267 A NEW SEXTANT William H. Holman III Vol. 1, No. 4, 1946268 BOWDITCH Alton B. Moody Vol. 1, No. 4, 1946

Title Author Issue269 JAPANESE ALMANACS Ralph F. Haupt Vol. 1, No. 4, 1946270 SIMPLE COMPUTATION OF DISTANCES OVER THEEARTHB. W. Sitterly and J. A.PierceVol. 1, No. 4, 1946271 AMERICAN ALMANACS George W. Mixter Vol. 1, No. 3, 1946272 AMERICAN NAUTICAL ALMANAC L. J. Comrie Vol. 1, No. 3, 1946273 REVISING THE NAUTICAL ALMANAC Samuel Herrick Vol. 1, No. 3, 1946274 THE AAF APPROACH TO POLAR NAVIGATION Fred A. Gross Vol. 1, No. 3, 1946275 ACCURACY OF POSITION FINDING USING THREE ORFOUR LINES OF POSITIONS. A. Goudsmit Vol. 1, No. 2, 1946276 CAPTAIN THOMAS HUBBARD SUMNER, 1807-1876 Robert S. Richardson Vol. 1, No. 2, 1946277 INTERPRETATION OF THE CELESTIAL LINE OF POSITION Austin Phelps Vol. 1, No. 2, 1946278 INSTRUMENTAL SOLUTIONS IN CELESTIAL NAVIGATION Samuel Herrick Vol. 1, No. 2, 1946279 NOON INTERVAL TABLES T. F. Hickerson Vol. 1, No. 1, 1946