2 Echin. xiv. echinoderma. [1904] 
Page 
iii Secondary Sexual Characters : — 
a. Differences of Form or Structure . . 34 
b. Differences of colour 34 
c. Protection of young 34 
c. Physiology : — 
i General 34 
ii Circulation ........ 35 
iii Respiration 35 
iv Alimentation and Digestion .... 35 
v Excretion and its Products .... 35 
vi Sensation 35 
vii Miscellanea and Experimental .... 35 
D. Bionomics : — 
i General Accounts (Vacant) 
ii Special habits 35 
iii Habitat (in Classes a — h, as under IV) . . 35 
iv Feeding (ditto) (ditto) . . 35 
v Defence and Protection .... (Vacant) 
vi Locomotion ....... 35 
vii Autotomy and Regeneration (in Classes a — h) . 36 
viii Parasites and Commensals (ditto) . 36 
ix Echinoderms as Food 36 
x Echinoderms in Geological Aspect ... 36 
e. Miscellaneous : — 
i Research and Instruction (a. Preservation, b. 
Mothods of research, c. Museum exhibits 
and Collections. d. Instruction) . . 37 
ii Economics 37 
iii Bibliography 37 
iv Historical, Popular notions, &c. 37 
F. Auxology : — 
i General principles (Vacant) 
ii General accounts ...... 37 
iii Formation of Gonads 37 
iv Oviposition, Fertilisation, Segmentation . . 37 
v Larval stages 38 
vi Organogeny, 1 - 12 > as under II, b, i . . . 38 
vii Post-larval growth-stages 38 
viii Developmental mechanics and Experimental 
Embryology 38 
(Under each of the above a — h indicate Classes as 
under IV.) 
III. — Distribution. 
a. Geographical : — 
i General . . . , 39 
ii Atlantic Ocean and adjacent Seas ... 40 
iii Indian Ocean and adjacent Seas ... 40 
iv Pacific Ocean and adjacent Seas ... 41 
v Arctic Ocean and adjacent Seas . . . 41 
vi Antarctic Ocean and adjacent Seas ... 42 
