Il. 
Ill. 
Le 
Il. 
CONTENTS. 
PART III. 
SCIENCE. 
Researches on the Action of Ammonia upon the Chlorides and Oxides 
of Mercury. By Robert Kane, M.D. M.R.1.A. Professor to the Royal 
Dublin Society and the Apothecaries’ Hall, Corresponding Member of 
the Society of Pharmacy of Paris, and of the Society of Medical 
Chemistry in the same City. Read November 30th and December 
28th, 1835. 
Further development of a method of observing the Dip and the Magnetic 
Intensity at the same time, and with the same Instrument. By The Rev. 
Humphrey Lloyd, M.A., F.R.S., M.R.LA., Fellow of Trinity College, 
and Professor of Natural and Experimental Philosophy in the Uni- 
versity of Dublin. Read December 28th, 1835. ........s0seeeeeeee 
On the Laws of the Double Refraction of Quartz. By James Mac 
Cullagh, Fellow of Trinity College, Dublin. Read February 22, 1836. 
An Investigation of the Principles upon which a new Self- Registering 
Barometer may be constructed. By John Stevelly, Esq. Professor of 
Natural He al in the Belfast Institution. Read November 30, 
1835. . “no pAb CATES 7AB SCS CoO CHOCO OCOOASHED EDO RES 
ANTIQUITIES. 
On an Astronomical Instrument of the Ancient Irish. By Sir William 
Betham, M.R.LA., F.A.S., Ulster rage 4, Arms, me a: Read 
May 23, 1836. . ScbocnoconeccconnuocSeenpsnGcHooDachocoodeaEcosnonadnos 
On the Ring Money of the Celte, and their System of Weights, which 
appears to have been what is now called Troy Weight. By Sir 
William Betham, M.R.I.A., Ulster a ee Arms, ak ae Read 
May 23 and June 27, 1836... Rescisiasies 
VOL. XVII. a 
Page 
449 
461 
471 
