A D VERTISEMENTS. 



COMETS and their Tails 



AND 



THE GEGENSCHEIN LIGHT; 



BY 



FREDERICK G. SHAW, F.G.S., 



Assoc.M.Inst.C.E., etc., 



Author of "Fiscal Facts and Fictions." 



See page xxviii. 



Opinions of the Press. 



London Quarterly Review. "Mr. Shaw's ingenious theory cannot fail to interest anyone who has a taste 

 for su6h subjects. The romance of science is well represented in this acute and most interesting litile 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 their author." 



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



The MorningPost." Mr. Shaw in this admirably printed little book propounds a theory which is certainly 

 worth consideration. It is put forward in a very readable and even lively manner, and is forced by several 

 carefully-prepared plates.' 



Dublin Irtsh Times. " With full command of the most advanced astronomical 'earning, 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 astronomers, 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 everyone 

 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 problems 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 exhibits 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." 



To be obtained from the Author, 11, Neville 

 Court, Abbey Road, N.W. Price 216 net. 



See Page xxviii, " Fiscal Facts and Fictions." 



