Vol. xxii.. No. 12. December, 1913. 
CONTENTS. 
Page 
Obituary : 
Richard John Ussher. — R. M. Barrington, M.A., LLr.B., 221 
Irish Societies : 
Dublin Naturahsts' Field Club, . . . . . . . . 227 
The Irish Species of Petrobius. — Prof. George H. 
Carpenter, B A., M.R.I.A.— (Plates 2 and 3), . . . . 228 
Notes : 
The foodof Silpha subrotundata. — ^W. F. Johnson, ., ^^ 234 
Ravens on Brandon, County Kerry. — R. Li^oyd Praeger, ... 234 
White Wagtails on Migration observed at InishtrahuU. — Prof. C. J. 
Patten, M.D., .. .. ., .. .. 235. 
Nightjars at Sea. — G. P. Farran, . . . . . . . . 235 
The Little Auk in August. — Richard M. Barrington, . . . . 235 
Dipper in County Longford, .. .^ ., ., 236 
Review : 
Grenville A. J. Cole's ''Outlines of Mineralogy fcr Geolog'cal 
Students."— ( L Swain). ... .. ^« .. 236 
TERMS FOR ADVERTISEMENTS IN "IRISH NATURALIST." 
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Whole Page, From 10 o] According 
Half Page, . . . . . , „ 6 o > to 
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