21 
Sum tamen hand exsul, lihertas contigit ampla ; 
Exsilium in patria, verius ante tuli. 
Nunc ego prosper ago ; proprii nunc juris alumnus ; 
JSTunc mihi pro patria maximus orbis adest. p. 145. 
From these facts Dr. C. conjectures that the portrait was 
painted between the end of October and the 13th of Dec., 
1597. It could not have been painted later than the 18th 
of December, for then the inscription would have been ^^anno 
51 complete,” and as this poem is addressed to Kanzovius, the 
presumption is that it was written after Brahe’s arrival at 
Eanzovius’s, And Dr. C. conjectures that the portrait may 
have been painted to be engraved for Brahe’s Mechanica,” 
which he immediately began to print at Hamburgh whilst he 
remained at Banzovius’s, and that there may not have been 
time to have it engraved; or, may be, it was too self-glorious. 
The residence of Kanzovius, half a mile from Hamburgh, 
existed till ten or fifteen years ago, when it was pulled down, 
and a full-length portrait of Brahe disappeared, representing 
him with an astronomical instrument in one hand. 
Dr. C. exhibited a photograph from his picture, taken by 
an able photographer, Mr. White, Crescent, Salford, to whom 
he has given permission to dispose of impressions of it. 
“ Remarks on the General Affections of the Barometer 
noticed by Mr. J. A. Broun,” by Professor B. Stewart, LL.D., 
F.RS. 
Mr. J. A. Broun has found as an experimental fact that 
simultaneous variations of the barometric pressure occur at 
such distant portions of the globe as to lead to the inference 
that the whole globe is thus affected, from which Mr. Broun 
infers that some other force besides gravity is concerned in 
these phenomena. 
We know as a matter of fact that there are causes at 
work which give rise to electrical separation, although we 
may not know the precise nature of these causes. Thus 
evaporation goes on from the surface of the sea and of the 
