On the Cork Equatorial Telescope, ke. 369 
microscopes, greater precision could be attained in the reading of angles 
than with the largest metallic circles now in use.” 
I may mention also that I have taken the opinion of many of 
our great astronomers on the question, and among them I have 
had only one doubtful opinion—no unfavourable opinion—and all 
the rest highly favouratle. 
Clock Arrangements.—It is proposed that there should be a 
normal pendulum shut up in an air-tight case, and kept at a 
constant temperature and pressure and by which all the clocks in 
the Observatory shall be controlled. The details of the arrange- 
ment, however, are suspended just at present, waiting the result 
of the report of the British Association Committee on the subject 
of Normal Pendulums. Of that committee, Mr. Gill, Prof. 
Forbes, Mr. Ginningham, and myself have the honour to be 
members, and we hope, in our report, to be able to indicate some 
promising lines to work upon. 
In the foregoing description, I have endeavoured, as far as 
possible, to avoid ordinary details, but to give prominence to 
those points which may be considered special. It will be 
evident, I think, to any one who has followed me that the new 
observatory for the Queen’s College, Cork, will be remarkable at 
least for the unique nature of its instruments and the number of 
innovations introduced into the most of them. It is the hope of 
the authorities of the College, as well as myself, that in some 
cases at least these instruments may form models for those of the 
future ; and I desire to take this opportunity of recording 
my thanks to the College authorities for their kindness in 
permitting me to carry out in every instance my own individual 
views and embodying them in these instruments. 
Scien. Proc., R.D.S. Vou. m., Pt. v 2¢ 
