PREFACE. 
I have been fortunate in securing the services of Professor Bertkau 
as Recorder of the Arachnida, and he lias supplied the information 
regarding the genera and species described in 1888 and 1884, 
which was wanting in the last two volumes. 
Numerous corrections and additions have been made in the list 
of works consulted. 
Owing to the efforts of the Recorders, the present volume 
appears at an earlier date than usual. I have to return their 
thanks and my own to those institutions and individuals who have 
favoured us with copies of their publications. 
The Association is grateful for grants of £100 from the Govern¬ 
ment Grant Fund and the British Association, and for one of £10 
from the Royal Irish Academy. 
London, 
2 &th November , 1886. 
F. JEFFREY BELL. 
