Deiembkr 1, 1900.] 



KNOWLEDGE 



2()5 



ILLUSTRATED MAGAZINE 



Founded by RICHARD A. PROCTOR. 



T.nXVON : DECEMBER 1, 1900. 



CONTENTS. 



Editorial 



The Karkinokosm, or World of Crustacea,-^ 

 Crustacean Nurseries. By the Rev. Thomas R. R. 

 StBBBISO, m. v., F.H.S., P.L.S., F.Z.S. (Illustrated) 



The Evolution of Simple Societies. - VI.— The Revo- 

 lution Effected by Corn. By Prof. Aivked C. Hahdon, 

 M..V., SC.D . r.R s. 



The Heart ofDauphine. By Geenvii.lb A. J. Cole, 



M.R.I. .4., F..i.?i. ... 



The Milky Way in Cygnus. Bv Mi*. Walter MArNDKK 

 (Illustrated) " 



The IVlilky Way in Cygnus. (Plate.) 



Letters : 



The "CoLiiss' Monoplane Telescopk." By Kdwin 



Holmes. Note by E Walter Maindeu 



The Phase OF Vescs seen with tuk Naked Eve. 



AVlLLIAM Goddex 



"Dark Markings in the Solar Corona." liy II 



Ji'ott; by E. Walter Maunder 

 Rainbow Phenomena. By S. R. Stawell Brown 

 LrNAB Raisi'.ow. By Charles L. Buook 



British Opnithological Notes. Conducted by Harrv F 



WiTHBBBT, F.Z.S., M.B.O.U. ... 



Notices of Books 



Books Ebceited 



Thomas Henry Huxley 



Wireless Telegraphy. — V. Practical Work. By 

 I)E TuNZELSIANN. II. sc. (Ilhislrater/) 



Microscopy. By John H. Cooke, f.l.s., v.a.s. 



Notes on Comets and Meteors. By W. F. Denning, f.b a.s 

 (Illr.itrateit) 



The Face of the Sky for December. By A. Fowlee, 

 F.S.A.8. i filti.itrate'l] 



Chess Column. By C. D. Locock, b.a 



PAOR 



2fil) 

 L'6'.l 



J71 



2Hr, 



286 

 287 



EDITORIAL. 

 Standing on the threshold of a new century, whose 

 secrets in the advance of science have yet to be un- 

 folded, the humblest worker in the illimitable field 

 may well look back on the achievements of the 

 nineteenth century with admiration — perhaps with 

 awe — as he turns his face hopefully to the work of the 

 twentieth century. A hope that, as in past so in 

 future decades, the arm of science may be lengthened 

 by the force of master intellects, will ur<^e forward, 

 and not deter, the humble toiler in his labours. 



One of the pleasing duties attaching to our position 

 in the ranks of strenuous enquirers after truth is that 

 of expressing our thanks to the many friends — ^readers 

 and writers alike — who have aided us in our work 

 during the past year. 



In making our customary announcement of some 

 of our projects for the new year, it is with pleasure 

 that we note an increasing popular interest in 



Astronomy. In this connection Mr. .Maunder jno- 

 poses to continue his interesting series of articles 

 (in ' Astronomy without a Telescope " under the 

 title of " Constellation Studies." These articles 

 will be illustrated by a set of star cluirts and 

 maps, which arc being special!)- prepared for 

 Knowledge. Arrangements have also been com- 

 pleted with some writers new to our images, who will 

 contribute to the Astronomical work of the year. 

 Among these, Prof D. P. Todd, Director of Amherst 

 College Observatory, Massachu.setts.will write on "The 

 Construction and Working of a Special Instrument 

 for Eclipse Photogra[)hy " ; the Rev. A. 1.. Cortie, 

 S.J., F.R.A..'^., on Sunspots ; Prof A. W. Hickerton, of 

 New Zealand Univcrsit)', on " The P^olution of the 

 Solar System " and on " The Evolution of the 

 Gala.xy"; and Mr, Robert Brown, Jun., i.s.A., on 

 "The Constellation P^igures in Greek Coin 'P\ pes." 



We hope ta publish early in the year the first of a 

 short series of illustrated articles on "Waves," by Mr. 

 Vaughan Cornish, descriptive of his investigations 

 (luring the past si.x years on the Chesil Reach, the 

 Sand Dunes in Egypt, the Goodwin Sands, and 

 other places. These articles will be in continuation 

 cf the writer's former series of j^apcrs on "Waves," 

 which appeared in our columns some years since. 



Arrangements have also been completed for a 

 series of six articles on the Insects of the Sea, by 

 Mr. G. II. Carpenter, i'...sc., and a series of six popular 

 papers on P'lowering Plants, by Mr. R. Lloyrl Pracgcr, 

 who will take for his subjects the struggle for existence, 

 ])lant dispersal, and the flora of Ireland. Mr. R. 

 L)(lekker, F. U.S., will contribute to the J anuar)' number 

 an illustrated article on Monkey Hand-prints, to be 

 followed by a paper from the same pen on the 

 Identification of Individuals by means of Einger Prints. 

 The Rev. T. R. R. .Stebbing, F.R.S., has promised 

 to write on some singular groups of Aiikropoda ; 

 the Rev. J. M. Bacon, M.A., F.R.A.s., on "Storms and 

 .Storm Clouds as Observed from a Balloon," and 

 "Bells and their Value as Warning Signals"; and 

 Mr. Plarry V. Witherby will recount some oi his 

 e.xperiences in a recent ornithological expedition to 

 the White Xile. 



Contributions in Astronomy are also jironn'scd by 

 Mr. .A. C. D. Cronmielin, Mr. John Kvershed, Mr. A'. 

 Prowler, Mr. J. E. Gore, and Prof E. C. Pickering ; 

 and on Colour Photography, by Mr. II. .Snowden 

 Ward ; on Rockall, by the i-iev. W. .S. (-ireen ; on 

 Standard Silver, by Mr. iM'ncst Smith ; and in 

 Geol(3g>-, by Prof G. A. J. Cole. Mr. W V. Denning 

 continues his interesting c(jlumn on " Comets and 

 Meteors." and Mr. Prowler will foretell, as heretofore, 

 "The Face of the Sk)-" month by month. 



p'ollowing the announcement in our Chess Column 

 in the p'-e.sent number, Mr. C. P) Locock will com- 

 mence a .Solution Tourney in the January issue, and 

 we hope to publish original articles on the game from 

 the pens of some leading players during the year. 



We have also arranged with Mr. M. [. Cross, the 

 joint author with Mr. Martin J. Cole of the well- 

 known " Plandbook of Modern Microscopy," to 

 conduct the column on Practical Microscopy during 

 the year. 



