EDITOR'S PREFACE. 



As may be seen in page xxii. of the English translation 

 of the author's preface to vol. i., in p. 8 of vol. ii., and 

 in p. 13 of the present volume, it was the author's 

 intention that the fourth and concluding volume of the 

 " Kosmos " should contain, for the telluric portion of 

 the universe, a notice of the specialities of the several 

 branches of science of which the mutual connection 

 had been indicated in the " general view of nature " 

 presented in the first volume ; the specialities of the 

 uranological portion having been treated in volume iii. 

 It has proved impossible, however, to comprise within 

 the limits of an ordinary single volume the treatment 

 of both the " inorganic and organic domains " of ter- 

 .restrial nature, as contemplated in p. 13 of the present 

 volume, or even the whole of what is there indicated as 

 appertaining to the first of these divisions : the fourth 



988S& 



