JCNE, 1901.1 



KNOWLEDGE 



143 



quarter on the iSrd at 8.59 p.m. The following are among 

 the occiiltations visible at Greenwich ihirin;,' the mouth : — 



Attention may Ix' speeially drawn to the occMiltation of 

 tu' ami il' Scor[>ii ou the night of the SSth. 



The Planets. — Meivnry is an evening star throughout 

 the month, reaching greatest easterly elongation of 24 'i'.t' 

 on the Itith, and, apart from the strong twilight, is very 

 favoumbly situated for observation. On the lOth, he sets 

 Ih. oom. after the sun; on the l<>th, Ih. 4"nii. ; and on 

 the ISth, Ih. 40ni. after the sun. On tlie iCth the planet 

 will be to the snuth-west of Castor and Pollux, roughly 

 at the same distance ffm Pollux tliat this star is from 

 Castor. 



Venus is an evening star, having [lassed superior con- 

 junction on May 1st. At the middle of the month she 

 sets a little less than an hour after the sun, and at the 

 end of the mouth almost exactly an liour after the sun. 



Mars may still lie watched in the early evening. On the 

 1st he sets a little before 1 a.m., and on the 30th about 

 11.20 P.M., his apparent diameter diminishing from 7"'2 to 

 tj""2. On the loth the illuminated part of the disc will 

 l)e 0'890, the phinet iiaving jassed iiuadratnreon May 'irttli. 

 The path is direct, or easterly, through the south-castcin 

 part of Leo. 



Jupiter inav be observed befoii' midnight throughout 

 the month, risinij on the 1st a little before half-past ten. 

 and on the 30th a little aft<n- eight. The planet will be 

 in opposition on the 30th, but as his declination is then 

 23° south, his altitude on the meridian in London will be 

 less than 16'. The path is retrograde, or westerly, through 

 Sagittarius. On the l.5th the apparent polar diameter of 

 the planet will be 43". The more interesting satellite 

 phenomena at convenient hours are as follows : — 



Attention has been drawn by Mr. Crominelin to the 

 speciallv interesting piieuomena on the 30th, on which date 

 there will be a transit of the earth across the sun's disc as 

 seen from Jupiter. Satellite I. will almost occult its own 

 shadow on the planet, but as the shadow will be slightly 

 the larger, a dusky ring may be expected to surround the 

 satellite. 



Saturn is in Sagittarius, a little to the east of Jupiter. 

 On the 1.5th, the apparent diameter of the planet will be 

 16 '8, and the major and the minor axes of the outer ring 

 respectively 42 "4 and 17"'6. The ring is widely open, 

 with the northern side towards us. 



Uranus is now fairly well placed for obseiwation, being 

 in opposition on the 6th, but like Jupiter and Saturn, 

 rather low in the sky. The path of the jdanet is a short 

 westerly one in the most southerly |>art of Ophiuchus; it 

 will be found to the west of the stars ^ and 5, roughly 



equidistant from them, and at a distance a little greater 

 than that between the two stars. 



Ne|itune is in conjunction with the sun on the 21*t, 

 and cannot be observed. 



The Stars. — About 10 p.m., at tlio middle ol the 

 month, ('yguus will be in the east ; Lyra will be high up, 

 a little to the south of east; and A(piila will be nearly in 

 llie same direction, but lower. Near thc^ meridian will be 

 Hercules. Corona, 0[)hiuchus. Libra, and Scorpio. Arc- 

 turus will be a little west of the meridian. Virgo rather 

 low in the south-west, and Li'o almost due west. 



(!ri)css CToIumn. 



By C. D. LococK, b.a. 



■* 



Communications for this column should be addressed 

 to C. D. LococK, Netherfield, Cambcrlcy, and be posted 

 by the 10th of each month. 



.Solutions of May Prolileins. 

 (Mrs. Hainl.) 



No. 1. 

 1. Ij to QB2, and mates next move. 



No. 2. 

 Ki'li-niore. — 1. B to Kt2. 



If 1. . . P to R4, 2. Kt to Kt.^,. 



1. . . P to B5, 2. R to Klcli. 



I. . . PxP, 2. Kt to QH. 



1. . . P to I\t4, 2. Px P en passant. 



Tlie following are a.t ])rcsent the Iciiding scores in the 

 Solution Tourney ; — • 



Tiri^iilii-serfii iminla. — S. CI. Luckeouk, J. T. Blakeniore, 

 (x. W., C. Johnston, A. C. Challenger, W. Jay 



Tweidi/-xi'' piiiiitg.—J. Baddeley, H. Le Jeune, G. 

 Groom, F. J. Lea, W. de P. Crousass, W. H S. M., F. 

 Dennis, C. C. Massey, Eugene Henry, A. J. Head, J. 

 Sowden, G. W. Middleton, E. Hunt, Vivien H. Mac- 

 meikan, J. E. Broadbent, C. f!hild. 



Tii-fuhj-tiri' jjiiiiify. — Endirby. 



Tweiity-foiir jiohilx.—C. F. P., (L A. lAo-de (('apt), 

 A. H. Mai-hell Cox, Alpha, H. Boyes. 



Tivcnfij-thirt; poin.ig. — A. E. Whitchousi', .1. .\1. K , \V. 

 Nash, C. C. Pennington. 



Tirenty-tiro pninU. — F. A. Wileoek, who did not attempt 

 the January ]iroblems, but has since scored the maxiinum 

 number of points. 



All the above score .5 this month, with the exception of 

 Endirbv, 4 (I point deducted for incorrect claim lor a 

 second solution;, and A E. Whitehouse, 2. , 



CoEBKCT Solutions of both ju-oblenis have also been 

 received from W. Boyd and A Kempster. 



Endirbij. — After 1. Q x Bch, K to Q3, there is no mate. 



. W. H. S. M. — The law concerning post-marks was 

 stated very c'early before the competition began. There 

 can be no doubt as to its interjuetation in the case you 

 mention. 



F. 0. Wilhdmy. — April solutions correct; too late to 

 acknowledge last month. 



W. H. (jirmlrij. — Ma.ny thanlcs. If is marked to ap[)eai- 

 later in the summer. 



