December, iqiz , ^^g. ^,cs*, yOPK 



PROCEEDINGS 



OF THE 



ROYAL IRISH ACADEMY 



Volume XXX, Section A, No. 5 



J. A. McClelland and h. Kennedy 



THE LARGE IONS UN THE ATMOSPHERE 



DUBLIN 



HODGES, FIGGIS, & CO., Ltd. 



LONDON : WILLIAMS & NORGATE 



IQI2 



Price Sixpence 



