INDEX OF CUTS 133 
Fiber of 38, 61 
Ideal cilia cell of Silicious Sponge 37, 72 
Sri See) i SO BONE Oy LO 
Logger-head Sponge 18, 31 
Limy Sponge 40, 80 
Mining Sponge 33, 61 
Net Sponge 20, 33 
Normal filament of Filamentous Sponge 12 A, 20 
Palm Sponge 25, 40 
Purple), “<- 28 A, 42 
Red Sponge 28 B, 42 
Scarlet Sponge 19, 31 
Section of Finger Sponge 26, 64 
2. Small Tube Sponge 6, 16 
= - “Tube Sponge /, 17/ 
Single cilia cell of Silicious Sponge 88, 72 
Skeleton of Aplysinia gigantea 10, 19 
seo <<: ‘Giant Cup Sponge: 10, 19 
Pe ube Sponge 4.7.29 
Spicuies of Fresh Water Sponge 31, and 52, 46 
ae «« Salt Water Spiculigenous Sponges 32, 46 
Spiculigenous Sponges 35, 64 
Tube Sponge 1, 12 
New growth of 16, 27 
Unusual filament of 12, 20 
Venus Flower Basket (section ) 34, 61 
Water System of Tube Sponge 2 and 3, 15 
Young Tube Sponge 13, 22 
