GroRE — On Smpeded VariahJe Stars. 425 



No. 762. 5+ Lalande (33087-8) ; 5 Harding; 5-4 Heis ; 4-25 at 

 Oxford (1882-398) ; 4-55 and 4-8 H.P. A ^veil-known double star. 

 Struve rated the components at 4*9 each, and Smyth 5^ and 6. 

 Yariation has also been suspected in the colours of the components. 

 ]y!ay 23, 1884, I estimated 95 one step less than 102, but considerably 

 brighter than 96 Herculis. 



1^0. 763. 4m. Lalande ; 4 Heis; 3-67 at Oxford (1882-398); 

 3-99 H.P. May 23, 1884, I found it one step less than ^ Herculis. 



1^0. 765. = Arg. 36°, 3243. 



'Ko. 766. A close companion (126°-9 : l"-84) is suspected variable ; 

 8 and 9m. Dembo-u'ski; 11m. 0. Struve. Burnham found it ''very 

 difficult " vrith 6-inch refractor. 



JS'o. 768. jN'o magnitude given in Lalande ; 8 m. Harding. 



iSTo. 770. A -^ell-known double star. The small companion sus- 

 pected of variation by Struve, Dembowski, and 0. Struve. 



1^0. 111. Sept. 17, 1884, I estimated it 6-8 m. 



Xo. 772. Birmingham's observations vaiy fi'om 9-5 m. to invisi- 

 biUty. 



iSTo. 773. One of the components of this multiple star — h 1886 — 

 has a small companion, -which has been suspected of variation; 13 m., 

 Sir J. Herschel; 14m., Smyth; 16m., Piazzi Smyth at Teneriffe 

 (Herschel's scale) ; 10-5 m. Sadler. 



