220 



KNOWLEDGE 



[September 1, 1890. 



with a northern declination of 19° 51', and an apparent 

 diameter of 2i", the planet appearing as a small 8th mag- 

 nitude star. On the 30th he rises at 7h. 50m. p.m., with 

 a northern declination of 19° 49'. He describes an ex- 

 cessively short retrograde arc to the N.N.W. of e Tauri 

 during the month. A map of his path till the end of the 

 present year is given in the Kniflwh Merluniic for Novem- 

 ber 15, i889. 



The following places, for every fifth day in September, 

 of the comet discovered by Mr. Denning on -July 23rd, are 

 taken from Herr Berberich's ephemeris. They are for 

 midnight, Berlin mean time. The brightness at the time 

 of discovery is taken as unity. The comet will pass its 

 perihelion on September 24th, at a distance from the sun 

 of 123i millions of miles, and fi'om the earth of 138| 

 millions of miles. 



September 



The comet thus phmges fi-om Corona Borealis through 

 Serpens and part of Libra into Scorpio. There are no 

 well-marKed showers of shooting-stars in September. 



The moon enters her last quarter at 3h. 29m. a.m. on 

 the 6th, is new at 7h. 53m. a.m. on the 14th, enters her 

 first quarter at lOh. 5m. p.m. on the 21st, and is full 

 (Harvest Moon) at Ih. Om. p.m. on the 28th. The 6th 

 magnitude star 64 Ceti will disappear at lOh. 40m. p.m. 

 on the 2nd at an angle of 138'^ from the vertex, and 

 reappear at llh. 12m. p.m. at an angle of 202° fi-om 

 the vertex, 'and the 4| magnitude star $^ Ceti will make 

 a near approach to the limar limb at llh. 63m. p.m. at an 

 angle of 175° fi-om the vertex. On the 3rd at 6h. 32m. 

 A.M. (one hour and eighteen minutes after siuirise) the 71 

 magnitude star B.A.C. 741 will make a near approach to 

 the lunar limb at an angle of 58° from the vertex. The 

 6th magnitude star B.A.C. 1206 will disappear at 9h. 32m. 

 P.M. on the 4th at an angle of 49° fi'om the vertex, and 

 reappear at lOh. 20m. p.m. at an angle of 277' from the 

 vertex. The 6th magnitude star B.A.C. 1240 will disap- 

 pear at Ih. 14m. a.m. on the 5th, at an angle of 75° from 

 the vertex, and reappear at 2h. 22m. a.m. at an angle of 

 262°. The 6th magnitude star B.A.C. 1801 will disappear 

 at llh. 55m. p.m. on the 6th, at an angle of 99^ from the 

 vertex, and reappear at Oh. 42m. a.m. on the 7th at an 

 angle of 208° from the vertex. The 6th magnitude star 

 24 Ophiuchi will disappear at 7h. 56m. p.m. on the 20th 

 at an angle of 120° from the vertex, and reappear at 9h. 

 3m. P.M. at an angle of 285° from the vertex, the moon 

 ha\'ing set at Greenwich 15 minutes pre^^ously. At 7h. 

 57m. P.M. on the 21st the 6|- magnitude star 63 Ophiuchi 

 will make a near approach at an angle of 197° from the 

 vertex. At llh. 83m. p.m. on the 24th the 5^ magnitude 

 star )(^ Capricorni will make a near approach at an angle 

 of 226° fi-om the vertex. The 4i magnitude star 30 Pis- 

 cium will disappear at lOh. 36m. p.m. on the 27th at an 

 angle of 123° from the vertex, and reappear at llh. 45m. 

 p.m. at an angle of 295°. The 5th magnitude star 38 

 Piscium -nill disappear at Oh. 32m. a.m. on the 28th at an 

 angle of 100° from the vertex, and reappear at lb. 28m. 

 P.M. at an angle of 356°. On the 29th the 6th magnitude 

 star 26 Ceti, which has a lilac-coloured 9th magnitude 

 companion at 16i" distance, will disappear at 8h. 24m. a.m. 

 at an angle of 146° fi'om the vertex, and reappear at 4h. 



28m. A.M. at an angle of 388° from the vertex ; at 5h. 42m. 

 A.M. the 6J magnitude star 29 Ceti will disappear at an 

 angle of 169° from the vertex, and reappear at 6h. 35m. 

 A.M., 36 minutes after simrise, at an angle of 279; while 

 at 7h. 18m. p.m. the 4i magnitude star v Piscium will 

 make a near approach to the lunar limb at an angle of 

 167° from the vertex. 



zm\)ist Column. 



By W. Montagu Gattie. 



DECLIXIXG TO DRAW THE LOSING TRUMP. 



w 



trump. 



E are indebted to Mr. H. W. Trenchard for the 

 following hand, which occurred recently in 

 actual play, and furnishes an instructive 

 illustration of the good policy, under certain 

 cu'cumstances, of not drawing the losing 



Hand No. 13. 



F?W^ 



•?• ffii O o 



Z's Hand. 

 Score — 2 all. Z turns up the Nine of Hearts. 



Note. — A and B are partners against Y and Z. A has 

 the first lead ; Z is the dealer. The card of the leader to 

 each trick is indicated by an arrow. 



Tricks— AB, ; TZ, 1. 



is— AB, 1 ; TZ, 1. 



Notes. — Truh- 1. — The three of hearts is marked in A's 

 hand, and therefore he holds five trumps. 



Trick 2. — Z treats his best short suit as a long one, and 

 leads the lowest. We should have preferred to lead the 

 knave of spades. 



Tricks— AB, 2 ; YZ, 1. 



Tricks— AB, 3 ; YZ, 1. 



Notes. — Trick 3. — B is clearly void of trumps. 



Trick 4. — B has continued with the fourth-best spade, 

 and must hold queen, ten ; therefore Y can have no more 

 spades, and the other five are with B or A. 



