126 INDEX 
Habits of Salt Water Silicious Sponges 68 
*- +* Fleshy Sponges 78 . 
«© «* Fresh Water Sponges 75 
eee te ES EN dc 
Hercinea 59 
Horny Sponges 9-39 
Color of 49 
Geographical range of 50 
Habits of 45 
Parasites of 56 
Price of 56 
Incrusting Sponges 67 
Color of 73 
Individuahty of sponges 49 
Introductory 5 
Lamb's Wook Sponge 55 
Lesson on sponges 99 
Limy Sponges 76 
Color of 77 
(seographical range of 76 
Habits of 77 
Logger-head Sponge 54, 41 
Making easts of Living Sponges. li2 
Maynard's Sponge 44, 50 
