402 Proceedings of the Royal Irkh Academy. 



Iso. 669. Birmingham 596 AauARii = Lalande 42431 (6^). — 7"5 

 Bessel ; 5-6 SeecM ; July 15, 1868. Birmingham's estimates of mag- 

 nitude, 1873-1876, vary from 6 to 8 ; 6-5 Webb, September 3, 1873. 

 It is 6-8 in the Uranometria Argentina. From observations, 1880- 

 1883, Espin finds that the star is certainly variable, but that the 

 variation does not exceed a magnitude, with a period of, perha])s, 

 several years {FMg. Mechanic, May 18, 1883). 



September 6, 1877. I found this star 7i-m. — less than Lalande 

 42616. 



Sept. 21, 1879. About 7i or 8 m. ; very slightly brighter than :i 

 star closely s.f. (LL 42445). 



Sept. 10, 1883. About 7 m. ; considerably brighter than the star 

 s.f. 



No. 670.-28 AwAnn.— 7 m. Lalande (42913); 6 m. Harding; 

 6 m. Heis. Sir W. Herschel found 28 , 30 (30 was rated 5-6 by 

 Heis); 5-9 Gould; 6 m. Franks, Oct. 5, 1877. 



Sept. 10, 1883. 28 three steps less than 32 Aquarii. 



ISTo. 671. Lalande 42958 Pegasi. — 7 and 6 m. Lalande; 7 Bessi'l ; 

 6-5 DM; 6-7 Heis; 6-1 Grould (at Albany), and 6-6 at Cordoba. 

 Dr. Gould susjDects variation, although he includes it in his list of 

 " Standards of Magnitudes" {U. A. p. 35). 



'^0. 672. AQUAEn. — Suspected variable by Peters (A jST 2434). 



ISTo. 673. 30 Aqtjahii.— 41- Lalande (42978) ; 5 Harding ; 5-6 

 Heis ; 5-8 Gould. Sir W. Herschel found the following sequences : — 

 p , 30 30-60 28 , 30 and 30 --36. 5 m. Pranks, Oct. 5, 1877 

 (k = 5 m., Oct. 14, 1877). In Oct., 1874, I estimated this star as 



6 m. — about = 51 , and decidedly fainter than k (5-6 Heis). 5*57 H.P. 



Xo. 674. BiHMiNGHAM 600 Pegasi. — 7-7 m. Argelander ; 8 m. 

 d' Arrest, July, 1874. Birmingham's observations: — 8m. Sept. 20, 

 1873; 6-5, Nov. 25 and 29, 1874; 7 or rather less, Dec. 2, 1874; 

 7-5-8, July 17, 1876. It seems to be Lalande 43043 (7^ m.). 



No. 675. 32 Aqtjahii. — 6 m. Lalande, Harding, and Heis ; 5-7 

 Gould; 5 m. Pranks, Oct. 5. 1877. 5-24 H.P. 

 In Sept., 1874, I found it less than o Aquarii. 

 Sept. 10, 1883. 32 three steps brighter than 28 Aquarii. 



No. 676. V Piscis AusTBALis (= Lacaille 9030). — 61 Lacaille ; 



7 Brisbane ; 5 Behrmann ; 6-5 Cape Catalogue (1878-26) ; 5-4 Gould, 

 who considers that " it has, perhaps, grown brighter in recent years 

 (27; N., p. 296). 



No. 677. 2 Heis LACEETJ5. — 6 m. Lalande (43152) ; 7 m. Harding ; 

 6-5 Heis; 4-6 va. Durchmusterung ; 5-35 Pierce; 5^ Pranks, Oct. 17, 

 1877. Pierce says {Harvard College Annals, vol. ix. p. 141) : — " I 



