TO 



SIR DAVID BREWSTER, K.H. 



D.C.L., F.E.S. 



ONE OF THE EIGHT ASSOCIATES OF THE IMPERIAL INSTITUTE OF FRANCE, 

 CHEVALIER OF THE PRUSSIAN ORDER OF MERIT OF 



FREDERICK THE GREAT, 



PRINCIPAL OF THE UNITED COLLEGES OF ST. SALVATOR AND 



ST. LEONARD'S, ST. ANDREWS, 



ETC. ETC. ETC. 



DEAB SIR DATED, 



I VBNTUBE to associate your name with the present 

 volumes on the double ground that the learned Author is one of 

 the most active members of the time-honoured Institute of France, 

 which, by electing you one of its Eight Foreign Associates, has 

 conferred upon you the highest honour that can be attained in the 

 world of Science ; and that M. de Quatrefages, like yourself, com- 

 bines the faculty of abstruse research with the felicitous gift of 

 popularising science in a spirit at once earnest and genial. 



Hoping that you may be spared for many years to continue 

 your important labours in those fields of science in which you have 

 already reaped so rich a harvest, 



I remain, 



Dear Sir David, 



Yours very truly, 



E. C. OTTE. 



ST. ANDREWS : 

 October 1857. 



