20 PARALLAXES OF STARS— BOOTH AND SCHLESINGEE. 



(494) lalande 34496, 18 h 31 m , +34° 20'. 



[Memoirs National 

 [Vol. XIX, 



+13.00 c+15.45 /x-1.63 x=+ 0.0404 mm. c= -0.0011 mm. 

 +98.99 +0.99 =+ .3308 ij=+ .00352. 



+6.94 =+ .0030 x=- .00033. 



Probable error for unit weight, ± .0014 mm. = ± // -021. 

 Annual proper motion in R. A., + ".188 ±".009. 

 Relative parallax, - ".005 ±".008. 



No other determination of this parallax has been published. Porter gives +0".191 for 

 the proper motion. 



(495) 



Weisse 1339, 18 h 45 m , +34° 25'. 



+11.70 c+ 3.78 m-2.82tt=- 0.0458 mm. c=-0.0043mm. 

 +87.01 +3.72 =+ .0834 //.=+ .00115. 



+6.55 =+ .0159 tt=- .00007. 



Probable error for unit weight, ± .0015 mm. = ±".022. 

 Annual proper motion in R. A., + ".061 ±".009. 

 Relative parallax, - ".001 ±".009. 



No other determination of this parallax has been published. Porter gives +0" 062 for 

 the proper motion. 



