This survey found 353 LTT stars. Our results are presented in Table 2, were the content of the columns is a follows: Column 1: Correlative number. Column 2: Star numbers in Luyten's catalogue (LTT). Column 3: Location numbers where the first two digits refer to the area number and the other digits refer to the star number in the area. Column 4: Magnitudes. Columns 5 and 6: Positions for B1950.0. Columns 7 and 8: Positions for J2000.0. Column 9: Annual proper motions. Column 10: Errors. Column 11: Position angles. Column 12: Comparison of our proper motions with LTT proper motions in sense LTT minus ours. Column 13: Comparison of our position angles with LTT position angles in the same sense. Column 14: Remarks.
It is important to point out that the following stars present
differences in proper motion 
arcsec: 2 (LTT 9834) ,47
(LTT 442), 54 (LTT 481), 83 (LTT 946), 130 (LTT 1566), 147 (LTT 2147), 148
(LTT 2162), 157 (LTT 2464), 167 (LTT 2536), 177 (LTT 2612), 193
(LTT 3346), 216 (LTT 3468), 217 (LTT 3471), 227 (LTT 3534), 230 (LTT 3554),
238 (LTT 3614), 241(LTT 3626), 250 (LTT 3666), 256 (LTT 3713), 273
(LTT 3835), 283 (LTT 4320), 284 (LTT 4321), 293 (LTT 4380), 312 (LTT 4931)
and 335 (LTT 5066). On the other hand, the following stars, shows
values of position angles 
: 5 (LTT 10), 30 (LTT 358), 54
(LTT 481), 63 (LTT 555), 67 (LTT 814), 71 (LTT 875),
83 (LTT 946),
95 (LTT 1051), 102 (LTT 1413), 109 (LTT 1443), 130 (LTT 1566), 132 (LTT 1694), 137 (LTT 1763), 154 (LTT 2218), 157 (LTT 2464), 207 (LTT 3416), 211 (LTT 3448), 212 (LTT 3456), 222 (LTT 3502), 224 (LTT 3514), 283 (LTT 4320), 290 (LTT 4362), 293 (LTT 4380), 322 (LTT 5002), 340 (LTT 5073) and 350 (LTT 5156).
For the following stars we detected no proper motion: LTT 796, LTT 3516, LTT 4344, LTT 4982, LTT 5004, LTT 5005 and LTT 5045. The star LTT 3764 was not found in our plates. The star LTT 1445 appears in our plates as a double star. Figure 1 shows the finding charts, where North is up and East is to the left.
Acknowledgements
We are grateful to R. Antezana for his cooperation on exploring the plates, to M. Wischnjewsky and G. Valladares for their cooperation on making the finding charts and to E. Valenzuela for his careful maintenance of equipment. This work is in progress with the partial support of the Fondo Nacional de Desarrollo Cientifico y Tecnologico (Project 1930953).
