KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 43. N:o 10. 7 
corresponding to a point situated in Auriga. The Galactic longitude and latitude of 
the same point, reckoned from the point of the Galactic circle where the equator 
of the earth in its motion has its north-ascending node on the Galactic plane, are 
again: 
EB 
B = +2 56. 
2. State of matter in the original body of the Galactic System. 
There is a cireumstance able to support the idea of this situation of the Glo- 
bular Clusters, in the middle of the Galaxy, viz., the original state of the body, from 
which the whole Galactic System may derive its origin. In whatever manner this 
body otherwise may have been formed, it is very certain that the centre of the body 
has been overheated compared with the outer parts of it. Consequently, at the time 
when the matter condensed into the stars,' the process at the centre, which took 
place at a hotter and, on an average, considerably thinner state of the gas than 
elsewhere in the body, has given rise to dusty condensations dropped into spherical 
conglomerates, forming what we regard as the Globular Clusters. Farther away from 
the centre, the gaseous state has had a greater density, and consequently the con- 
densations have here grown larger, forming solid stars of every size. Finally, at the 
actual boundaries of the system, which may be conceived to have had the shape of 
a spherical shell or a bubble including matter of exceedingly thin consistency, a 
physical constitution has prevailed, which by condensation has given rise to the mi- 
nute white stars now constituting the Milky Way. It is of course incorrect to 
ascribe the variations of state of matter in such a body only to unequal temperature 
in the common sense of the word. The matter of the original body may rather be 
conceived to have been in an explosive state, far exceeding in thinness the gaseous 
state of matter to which we are accustomed. And although this cannot be di- 
rectly proved, it seems notwithstanding very probable, by considering the luminous 
state of many of the very bright planetary nebulx, which appear to be at distances 
exceeding those of the faintest stars.” 
At this state of matter, discontinuities of consistency, corresponding in some 
degree to the passage from fluid to gaseous state, may have occurred, which 
by condensation have given rise to the various condensed products referred to 
above. 
! To confer the investigations of GWwILYM ÖMWEN and ÅA. Lr. HuGHEs on muecleating temperature.  Phi- 
losophical Magazine 1908, ser. 6, Vol. 15 p. 746—761. 
? Indications of negative parallaxes are at present known for the planetary nebulxe G.C. 1532. [Astr. 
Nachr. N:o 4240]; G.C. 4964 and N.G.(C. 7027 [Astr. Nachr. N:o 4254]. The parallax of the Ring-nebula 
in Lyra is, accordingly to Newkirk's recent calculations, evanescent. 
