A MONOGRAPH 



TERRESTRIAL CARBONIFEROUS 



ARACHNIDA 



GREAT BRITAIN. 



REGINALD INNBS POCOCK, P.L.S., 



SUPERINTENDENT OP THE ZOOLOGICAL SOCIETY'S GARDENS, REGENT'S PARK, LONDON. 



LONDON: 



PRINTED FOR THE PAL.EONTOGRAPHICAL SOCIETY. 



January, 1911. 



