Vol. xxxiiL, No. 9. 



September, 1923. 



CONTENTS 



PAGE 



Algal Discolouration of Lough Neagh and the River Bann 



— Denis R. Pack-Beresford, m.r.i.a. .. .. 89 



The Pearl-Bordered Fritillary in Ireland — R. A. Phillips, 



M.R.I.A. .* •• , , , » .. •. 91 



Irish Societies : 



Dublin Naturalists' Field Club 

 A New Irish Field Club 



92 

 94 



Notes : 



Comparison of Eggs and Down of Pochard and Tufted Duck — Neven 



H. Foster . . . . . . , , * , , , 94 



The American Grey Squirrel in Ireland — Hugh Boyd Watt , , 95 



Arrival of Spring Migrants in 1923 — Nevin H. Foster ,. ,, 95 



Ihe Fox in Co. Down — Nevin H. Foster , , . . , . 96 



Down and Antrim Plants — Corrie D. Chase , . , , . . 96 



Notes from Cos. Down and Armagh A. W. Stelfox » , 96 



TERMS FOR ADVERTISEMENTS IN "IRISH NATURALIST.** 



Whole Page 

 Half Page 

 Quarter Page 



According to 

 Position. 



A Reduction given for a Number of Insertions, 



ALEX, THOM AND CO., LiaulED, LUiJLIN, 



