486 



- KNOWLEDGE • 



[Mabch 31, 



bo to givo np t)ic oxchango volontnrily, niul Dicn a draw might 

 roanlt. 



(^) If, in r<>|ily to 2(1. Kt to Q5, White docs not piny Kt takoB Kt, 

 lint 27. K to l<;t, I hen followH— 



•>7 28 liL'J^SfJ^ 20 J*'-"Q'^'"'I 



" ■ H I., m ' Wti^7Kt ' B to KKt7 



nnd a(rnin, liy pro|>or piny, tho Hiahop will force the oxcliiinKO. In 

 addition, HInok iniRlit follow another lino of piny, viz., by di«covercd 

 check nnd other judieioim piny ho could cnpture tho Pnwns on White 

 King's side, nnd then BInck's I'nwns would bccoino formidable. 



PKOBLEM No. 30. 

 By J. A. Miles. 



White to play, and mate in three mores. 



PKOBLEM No. 31. 

 By Leonard P. Eees. 



WHITB. 



White to play, ami mate in two mores. 



riiOBLEM No. 32. 

 By B. G. L.WS.* 



White to play, and mate in throe mores. 

 Published anonymously in the Boys' Ha'jazine. 



COnnECTION,— Piioni.EU No. 25, p. HI. 



Ilomoro Black Pawn from B3. 



Our nnmorouB correnpondentn who have kindly drawn our ntt. 

 lion to this problem, plcaiia take tho abovo correction (w) i 

 already appeared last week) in consideration. We shall bo li:i; : 

 to receive tlie correct solution of this problem, which embodi' 

 verj' neat iilea. 



A groat international Chess Tournament wnll be held at Vl^ i 

 beginning on Slay 10. Prizes to tho amount of J&IOO will be gi 

 The first prize will be £200. MossrH. Steinitz, Blackbume, 

 /iUkortort, tho three best players of tho whole world, will conij 

 This Tournament promises to eclipse anything hitherto attcmpi 

 in Chess Tournaments. 



ANSWERS TO CORRESPONDENTS. 

 •»• Please address Chess-Editor. 



J. A. Jlilcs. — Thanks for Problem, which has an improved 

 appearance. 



Leonard P. Recg. — Wo apologise for mistake in your Problem 

 No. 25. Problem and Game welcome. In tho last variation of the 

 " Giuoco Piano," p. 4-i2, if White does not play 10 Kt to B3, 

 threatening to capture the Black Knight, but 10 Castles, then 

 Black need not reply with 10 B to Kt5 ; a likely line of play for 

 Black in reply to 10 Castles would be Castling, to be followed by 

 P to KBl. White's centre Pawns always remain weak, and liable 

 to attack and isolation by P to QB4. Whichever way you play, 

 White is on his defence, instead of having tho attack in hand as 

 first player. 



W. Wood.— Received with thanks. 



Muzio V. H. Grinold. 



A. H. E., W. W. Morgan, 23, Great Queen-street. 



Contents of Knowledge No. 21. 



PAOB 



Tho First Dadodil. Bt Grant Allen 443 

 A Studv of Minute £ife. No. II. 

 Br {lenry J. Sleek, F.G.S., 



F:R.M.3 444 



Nichta i\-ith a Three-Inch Telescope. 

 By "A Follow of the Eoj-al Astro- 

 nomical Society" 445 



Notes on Hoiring. By an Old Club 



Captain 446 



The Crystal Palace Electrical Exhi- 

 bition. Seventh Notice 447 



The fireat Pyramid. Br the Editor 448 



The Saturday JteHext'i Comet 450 



Tricycles in 1883. By JohnBrovrning 4o0 

 The Duchess of Connaught's Illness 451 



PIGB 



The Path of Mars from 1875 to 1892 452 

 Chalcedonv Containing Liquid with 



a Movable Bubble. By the Key. 



Henrr H. Higgins 4$1 



Modem' Dress 454 



Compound Pendulum. Illustrated. 4S5 

 CoERBSPOXDBNCE :— Seeking after a 



sign — Cat's-eve Timepiece of the 



Chinese— Neolithic Man, &c. 456-153 



Queries 458 



Eeplies to Queries 468 



Answers to Correspondents 459 



Our Mathematical Column 460 



Onr Chess Column 480 



1 Our WTiist Column 462 



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