ON COMET 11, 1881. 89 
near approach to the orbit of Venus. The planet itself, however, 
had the point of near approach about seventeen 
before the comet arrived at it. Had the two bodies arrived at the 
int together, the elements of the comet’s orbit would have been 
considerably changed by the excessive attraction of the planet. 
In conclusion, I may mention that No. 2377 of the Astronom- 
ische Nachrichten, the latest date to hand, contains Dr. Gould’s 
announcement by telegraph to Europe of the comet’s appearance. 
is dated Ist June, and identifies the comet with 
that of 1807. 
I now add the results of my observations of the comet. They 
will prove useful to any computer who may be desirous hereafter 
are corrected for refraction. The positions depending on Lacaille’s 
the earth’s centre, x denoting the equatorial horizontal parallax 0 
the comet in seconds o 
