530 M. Treviranus on the Organized Bodies in 



ment. Although the investigation of the phenomena of terres- 

 trial magnetism was not the primary object of the expeditions 

 which have now, almost uninterruptedly, for twenty years been 

 fitted out by Government, another of which, and one of the 

 highest interest, is on the point of departure, yet a greater ac- 

 cession of observations of those phenomena has been derived from 

 these expeditions than from any other source in the same period. 

 We therefore feel assured that, when it shall have been repre- 

 sented to the Government, that the plan of observation advocated 

 by the Baron de Humboldt is eminently calculated to advance 

 our knowledge of the laws which govern some of the most inte- 

 resting phenomena in physical science ; that it appears to be per- 

 haps the only one by which we can hope ultimately to discover the 

 cause of these phenomena ; and that, from it, results highly im- 

 portant to navigation may be anticipated ; the patronage to 

 the undertaking which is so essential to its prosecution will be 

 most readily accorded. We beg, therefore, most respectfully^ 

 but at the same time most earnestly, to recommend to His Royal 

 Highness the President, and to the Council, that such a repre- 

 sentation be made to the Government, in order that means may 

 be ensured for the establishment, in the first instance, of magne- 

 tical observatories in those places which, from local or other 

 causes, afford the greatest facilities for the early commencement 

 of these observations. 



S. HUNTER CHRISTIE. 

 gth June 1836. G. B. AIRY. 



On the Organized Bodiesfound in the Seminal Fluid of Animals, 

 and their analogy to the Pollen of Plants. By G. R. 

 TREVIRANUS.* 



THE following interesting paper is taken from the fifth volume 

 t>f ^iedemann and Treviranus's Physiological Journal. Like 

 every thing coming from its illustrious author, it bears abun- 

 dant marks of accurate observation and deep reflection ; and we 



* We frre indebted for this important paper to the Dublin Journal of Me- 

 dical Science. 



