380 R. P. SELLORS. 
(?) Seed vessels. 
(2) Seed scales. 
In conclusion I must tender my thanks to Mr. W. W. Froggatt 
of the Technological Museum and to Mr. E. Avdall, a geological 
student of the Sydney Technical College, for assistance kindly 
rendered. 
THE ORBIT OF THE DOUBLE STAR h5014. 
By R. P. Senrors, B.a., Sydney Observatory. 
[Read before the Royal Society of N. S. Wales, December 6, 1893. ] 
Tus double star, which was discovered by Herschel at the Cape 
of Good Hope in 1836, has now described about half its apparent 
orbit, so I thought I would try ifa set of elements could be found 
which would represent fairly well the observations. I accordingly 
collected all the measures to which I had access, and think the 
accompanying list is complete. It will be seen that the observa- 
tions from 1836 to 1886 are very few and unsatisfactory ; this is 
no doubt to be accounted for by the closeness of the pair at that 
time ; Herschel describes it as “‘ excessively close and difficult,” 
and Jacob compares it to ‘a dumpy egg.” It is to be regretted 
that more attention has not been devoted to this star, as it is an 
interesting binary, and with more measures to work from, a toler- 
ably good orbit might now be obtained. The elements which I 
have the honour to submit to the Society are, of course, only 
provisional, but seem as satisfactory as can be expected from such 
data. The distance measures are so scanty that I had to draw 
the apparent ellipse from the position angles alone, after the 
method devised by Herschel. Mr. Burnham has pointed out that 
by thus rejecting the distance measures one may be misled by an 
apparent agreement between the observed and calculated positions, 
