136 Proceedings of the Royal Irish Academy, 
Jfo. 140 E ScuTi. — From good observations of maxima in 1882, 
Schmidt deduced a period of 168 days. {A.JY., 2491). Maxima were 
observed by Sawyer, 1883, June 1 ; 1884, June 7, August 3, October 
17, and I^ovember 30 (approximate) ; 1885, June 17, August 10 (?), 
and JS'ovember 16; and minima, 1884, July 12, September 15, l^o- 
vember 11 ; 1885, July 14, and September 24 ; and 1887, November 
23. 
^0. 142. /? LYRiE. — According to Pickering's theory of short-period 
variables, this star is a surface of revolution, the ratio of the axes 
being as 5 : 3, with the dark portion at one of the ends, and symmetri- 
cally situated as regards the larger axis. 
1^0. 143. E (13) LTEiE. — Particularly bright phases were observed 
by Sawyer, 1883, August 6 and 31; 1884, I^'ovember 7-12, and 
November 21-30. " The increase of light from its normal brightness 
at maximum amounted to about half a magnitude." (A.JV., 2660). 
Duner says, Le spectre est un des plus superbes de cette classe " ; 
and Vogel describes it as " ein vorziiglich schones Spectrum, welches 
dem von a Herculis gleicht." 
No. 148. E Sagittajeiii. — Duner finds a spectrum of the third type 
with extremely large and dark bands in the green and blue, but feeble 
in the red. 
No. 149 TJ Aquil^. — A short period variable, discovered by 
Sawyer in 1886. It is No 50 of Aquila ( = Lalande, 36791), in the 
TJranometria Argentina^ where it is 7*0 mag. Lalande rated it at 6. 
Sawyer gives the following elements : — 
Epoch, max. = 1886, September 20-01, Camb. (U.S.A.), M.T. + 7'^'0 E. 
Duration of increase = 2*^-5. 
decrease = 4'^'5. 
(Gould's Ast. Journal^ No. 155.) 
No. 150. hx (51) Sagittaeii. — No period seems to have been yet 
found for this star. Observations of this and other southern variables 
are much required. 
No. 151. E Cygni.— Schmidt observed maxima 1882, October 13 
(7 m.); and 1883, December 15 (6*8 m.) ; and Paxendell, 1885, 
February 20 (8*2 m.), and 1886, March 22. The mean period in the 
Catalogue was given by Schmidt. {A.N., 2577.) 
