XI. ARACHNIDA 
TO WHICH ARE ADDED 
GIGANTOSTRACA (XIPIIOSURA, TRILOBITA, EURYPTERIDA), 
PAN TO POD A, TARDIGRADA, PENTASTOMIDA, MYRIOPODA 
and PROTOTR AC II E AT A 
ARRANGED BY 
W. T. OALMAN, D.Sc. 
CONTENTS. 
PAGE 
Gigantostraca. 
I. Titles = 2800 .. .. .. .. .. .. .. 4 
II. Subject-Index=2S03-2827. . .. .. .. .. 5 
III. Systematic Index = 2831: — 
Trilobita . . . . . . . . . . . . . . 6 
Xiphosura, etc. . . . . . . . . . . . . 7 
Eur ypterida . . . . . . . . . . . . . . 7 
Pantopoda. 
I. Titles =2800 8 
II. Subject Index=2803-2827 *. 8 
III. Systematic Indkx= 2831 .. .. . # .* ;. 8 
(n-8902 h) b II 
