Table 2.  Lowell Proper Motion Survey, Northern Hemisphere.
          Key to Reference Abbreviations.


AVK            Alden, H L. and van de Kamp, P. 1924, Astron. J. 35, 165.
BD             number with asterisk, Bergedorf Eigenbewegungs-Lexicon 1936,
                 Hamburger Sternwarte in Bergedorf or the continuation
                 (Heidi, V. J. 1950, Astron. Nach. 279, 273).
BD             number with (L).  Luyten, W. J. 1942, Publ. Astron. Obs., Univ.
                 of Minnesota II, No. 12; 1944, III, No. 4.
BPM            Luyten, W. J. 1963, Bruce Proper Motion Survey:  The General
                 Catalogue, Vols. I and II (Minneapolis:  Univ. of Minnesota).
CI             Porter, J. G., Yowell, E. I. and Smith, E. 1915, Publ.
                 Cincinnati Obs. 18; 1930, 30.
E              Ebbighausen, E. G. 1938, Astron. J. 47, 112.
FI, FII, FIII  Furuhjelm, R. 1916, Acta. Soc. Sci. Fennicae 48, No. 1; 1926,
                 50, No. 7; 1947, Ser. A, 3, No. 12.
GL             Gliese, W. 1969, Catalogue of Nearby Stars, Veroff. Astron.
                 Rechen-Inst. Heidelberg, No. 22.
GOYAL          Goyal, A. N. 1962, Astron. Nach. 286, 196.
GRN            Van Rhijn, P. J. and Plaut, L. 1955, Publ. Kapteyn Astron.
                 Lab., Groningen, No. 56.
H              Hertzsprung, E. 1918, Astron. Nach. 207, 171.
HL             Haro, G. and Luyten, W. J. 1960, Bull. Tonantzintla y Tacubaya,
                 No. 19, 16.
HUB            Hubble, E. P. 1916, Astron J. 29, 168.
HYD            Contained in one of the lists published by the Hyderabad
                 observers in Astron. Nach., Mon. Not., or Astron. Nach. B.Z.
JO             Contained in one of the many lists of proper motion stars in
                 the Astrographic zones published in J. des Observateurs,
                 principally by the Nizamiah and Bordeaux Observatories.
K1             Karpov, B. G. 1937, Publ. Astron. Soc. Pacific 49, 146.
K2             Karpov, B. G. 1937, Astron. J. 46, 201.
KONIG          Konig, A. 1953, Astron. Nach. 281, 107.
KOPAL          Kopal, Z. 1939, Harvard Bull. No. 911, p. 28.
L              Luyten, W. J. 1942, Publ. Astron. Obs., Univ. of Minnesota II,
                 No. 12; 1944, III, No. 4.
LE             Luyten, W. J. and Ebbighausen, E. G. 1937, Astron. J. 45, 188.
LFT            Luyten, W. J. 1955, A Catalogue of 1849 Stars With Proper
                 Motions Exceeding 0.5 arcsec Annually (Minneapolis:  Lund
                 Press.)
LP             Luyten, W. J. 1961-1967, Publ. Astron. Obs. Univ. Minnesota
                 III, Nos. 8, 10, 11, 13-18, 20; 1963-1970, Proper Motion
                 Survey with the Forty-eight Inch Schmidt Telescope
                 (Minneapolis:  University of Minnesota).
LPM            Luyten, W. J. 1941, Publ. Astron. Obs., Univ. of Minnesota III,
                 No. 1.
LTT            Luyten, W. J. 1957, A Catalogue of 9867 Stars in the Southern
                 Hemisphere with Proper Motions Exceeding 0.2 arcsec Annually
                 (Minneapolis:  Lund Press).
               Luyten, W. J. 1961, A Catalogue of 7127 Stars in the Northern
                 Hemisphere with Proper Motions Exceeding 0.2 arcsec Annually
                 (LTT 10001-17027) (Minneapolis:  Lund Press).
               Luyten, W. J. 1962, First Supplement to the LTT Catalogues
                 (LTT 17028-18635) (Minneapolis:  Lund Press).
MC             1937, Publ. Leander McCormick Obs., Univ. of Virginia VII.
ML             McLead, N. W. 1939, Pop. Astronomy 47, 455.
OST            Oosterhoff, P. Th. 1936, Astrophys. J. 83, 340.
PUL            Deutsch, A. N. 1940, Publ. de l'Obs. Central a Poulkovo,
                 Serie II, LV.
R              Ross, F. E. 1925-1939, Astron. J. 36-48.
RAD            1934, Radcliffe Catalogue of Proper Motions in the Selected
                 Areas 1 to 115 (London).
S              Strand, K. Aa., Lenham, A. and Owen, T. 1958, Astron J. 63,
                 337.
T              1955, Ann. de l'Obs. Astron. Toulouse XXIII.
VM             Van Maanen, A. 1915, Astrophys. J. 41, 187.
VM1            Van Maanen, A. 1938, Astrophys. J. 88, 27 (Table 1).
VM2            Van Maanen, A. 1938, Astrophys. J. 88, 27 (Table 2).
VMW            Van Maanen, A. and Willis, H. C. 1930, Contrib. Mt. Wilson
                 Obs., No. 412.
W              Wolf, M. 1919, Veroff Sternwarte zu Heidelberg 7, No. 10;
                 1919-1929, Astron. Nach. 209-236.
Y              Schlesinger, F. and Barney, I. 1939-1959, Yale Zone Catalogues,
                 Trans. Astron. Obs., Yale Univ. 11-14, 16-27.