On the Galactic System with regard to its structure, origin, 
and relations in space. 
In consequence of a review of nebul& and clusters in the reach of the refrac- 
tor of the observatory at Stockholm, and on account of measures in the Globular 
Cluster Messier 92 [G. C. 4294] recently made," I was induced to take up for further 
examination a research, previously attempted, on the distribution on the heavens of 
the different classes of celestial objects, and at first the class of the Globular Clusters. 
It is, in fact, very striking to any one who has taken up the survey of the 
sky in conformity with the Herschelian classifications, that these marvellous and 
attracting systems may occupy some peculiar place among the stars and even in 
the general structure of the Galactic System. 
1. Place of Globular Clusters in the Sidereal System. 
It is surprising that the law of superficial distribution of the Globular Clusters 
seems to have remained almost unknown in modern astronomical literature, although 
it forms an immediate feature of the wellknown catalogues of nebul&e and stars. In 
a recent work, one finds for instance the assertion that »the planetary nebul&e are 
principally condensated to the Milky Way, while the Globular Clusters are uniformly 
scattered over the whole celestial sphere», which may be a misapprehension in both 
statements. 
With regard to the statistic researches of stars and nebulée, it is sometimes 
pointed out that the observations on the southern hemisphere, made by J. HERSCHEL, 
may not have been so reliable as to counterpoise the informations drawn from the 
northern one. The proof of such an opinion is, however, wanting, and on account 
of the fairly regular distribution of nebul& and stars on both hemispheres, the doubts 
in the respect mentioned may be regarded as overthrown, at least as far as only 
brighter objects are considered. Most of the Globular Clusters belonging to the 
! Der zweite Sternhaufen im Hercules, Messier 92: Astron. iaktt. och undersökn. å Stockholms Obser- 
vatorium Band 8 N:o 3, 
