COMETS AND THEIR TAILS 



AND 



THE GEGENSCHEIN LIGHT. 



By FRED. G. SHAW, F.G.S., 



Assoc.M.InstC.E., etc. 



Opinions of the Press. 



London Quarterly Review. " Mr. Shaw's ingenious theory cannot fail to 

 interest anyone who has a taste for such subjects. The romance of science 

 is well represented in this acute and most interesting little book." 



Nature. " The work as a whole is brief ; its tone is very modest." 



Sheffield Telegraph. " Mr. Shaw's theory is plausible, ingenious and 

 interesting, evincing close reasoning on the part of its author." 



Glasgow Herald. " Accurate in its general facts, sound in its authorities, 

 and cautious in its tone." 



Morning Post. " Mr. Shaw, in this admirably printed little book pro- 

 pounds a theory which is cert?inly worth consideration. It is put forward 

 in a very readable and even lively manner, and is enforced by several 

 carefully-prepared plates." 



Dublin Irish Times. " With full command of the most advanced astro- 

 nomical learning, Mr. Frederick G. Shaw, F.G.S., a traveller of wide 

 experience and a deep scientific thinker, now advances a novel theory as 

 to cometic tails, and as to that mysterious light commonly known as the 

 Gegenschein. Singularly interesting study ... it will, there can be no 

 doubt, engage the earnest attention of all astronomer*, and give rise to fruitful 

 discussion." 



Scotsman. " Of unusual interest to readers who study astronomy. 

 Simply enough and lucidly enough expounded in the book. Original, 

 ingenious, and suggestive, the book deserves the attention of every one 

 interested in its subject." 



African Review. " Revealing a fund of knowledge in astronomical and 

 meteorological science." 



LORD RAYLEIGH. " With regard to your theory of the Gegenschein, I 

 do not remember seeing the lens-like action of the earth's atmosphere noticed 

 before." 



Critic. " But, as I have known Mr. Fred. G. Shaw for some years, and 

 have recognised his ability as a writer and a scientist more than once in my 

 columns, his late departure as an author of a new theory on the most abstruse 

 astronomical preoblems merits some attention. His ingenious solution of 

 the great geological puzzle of the Witwatersrand conglomerates is still fresh 

 in the minds of scientific men ; and in turning to astral problems, as he has 

 done in his work ' Comets and their Tails, etc.,' he exhibit? the same logical 

 deductive thought shown in his pseudo-morphic theory as to the formation, etc., 

 of the said conglomerates. It is certain that he has scored a success in his 

 solution of the Gegenschein light. I heartily commend this book to my 

 readers." 





Price 2s. 6d. net. 



Published by BAILLIERE, TINDALL & COX. 



