11 Echin . 
Subject Index — Ethology. 
1019 
6. Technique. 
Baldwin, 7 & 8 ; Goby, 64 ; Mac- 
Bride, 93 & 94 ; Wilhelmi, 136. 
7. Nomenclature. 
Clark, 29 ; Foerste, 52 ; Hawkins, 
68 ; Stiles, 121. 
STRUCTURE. 1007 
1. General accounts. 
Doderlein, 45 ; Foerste, 52 ; Heller, 
69 ; Hudson, 73 ; Smith, 115 ; Springer, 
117. 
3. Homologies of Classes. 
Bather, 10. 
4. Skeletal Tissue or Stereom. 
Checchia-Rispoli, 26 ; Hawkins, 68 ! 
Merker, 98 ; Thust, 128. 
5. Skeletal Anatomy. 
Foerste, 52 & 55 ; Fossa-Maucini, 
57 ; Hawkins, 67 ; Lambert, 90 ; 
MacBride, 94 ; Merker, 98 ; Thust, 128 ; 
Wright, 138. 
6. Hydrocoel, Respiratory organs, 
etc. 
MacBride, 93 ; Thust, 128. 
8. Digestive System, Cuvierian 
organs. 
Foerste, 52 & 56 ; MacBride, 94 ; 
Thust, 128. 
9 : Nervous System and Sense- 
organs. 
Thust, 128. 
11. Axial organ. 
Foerste, 56. 
12. Generative organs and gonads. 
Thust, 128. 
PHYSIOLOGY. 1011 
2. Circulation. 
Thust, 128. 
3. Respiration. 
Crozier, 41 ; Thust, 128. 
4. Alimentation. 
Crozier, 38. 
6. Sensation. 
Crozier, 39 ; Jordan, 83. 
7. Experimental. 
Baldwin, 7 ; Crozier, 39 ; Fuchs, 59 ; 
Herlant, 70 ; Jordan, 83. 
DEVELOPMENT. 1015 
1. General Principles. 
Tennent, 123. 
3. Formation of gonads. 
Gemmill, 62 ; Kierskog-Agersborg, 
89 ; Mortensen, 102 ; Tennent, 123. 
4. Oviposition, etc. 
Baldwin, 8 ; Gemmill, 62 ; Just, 84 ; 
Moldovan, 100 ; Mortensen, 102. 
5. Larval stages. 
Fuchs, 59 ; Gemmill, 62 ; MacBride, 
93 & 94 ; Mortensen, 102a ; Runnstrom, 
112 ; Wilhelmi, 135. 
6. Organogeny. 
Gemmill, 62. 
7. Post-larval growth-stages. 
Crozier, 38 ; Foerste, 56 ; Smith, 
115 ; Springer, 117. 
8. Experimental Embryology. 
Baldwin, 7 & 8 ; Fuchs, 59 ; Just, 84 ; 
MacBride, 93 ; Runnstrom, 113. 
ETHOLOGY. 1019 
2. Special habits. 
Crozier, 38 & 39 ; Gilchrist, 63 ; Kin- 
dle, 87 ; Mortensen, 102. 
3. Habitat. 
Clark, 33 ; Crozier, 38 ; MacBride, 
94. 
4. Feeding. 
Jensen, 82 ; Kindle, 87. 
5. Defence and Protection. 
Crozier, 38. 
6. Locomotion. 
Crozier, 38 & 39. 
7. Autotomy and Regeneration. 
Crozier, 40. 
