ECONOMIC SERIES No. 6 



BRITISH MUSEUM (NATURAL HISTORY) 



SPECIES OF 



ARACHNIDA and MYRIOPODA 



(SCORPIONS, SPIDERS, MITES, 

 TICKS AND CENTIPEDES) 



INJUEIOUS TO MAN 



BY 



STANLEY HIRST 



Assistant in the Department op 'Zoology 



?? 4 Z3S1 



WITH 26 TEXT-FIGURES AND 3 PLATES 



LONDON 



PRINTED BY ORDER OF THE TRUSTEES 



OF THE BRITISH MUSEUM 



[PRICE SIXPENCE] 



