TO? SPONGES 
MATERIAL NEEDED FOR A FULL LESSON 
ON: SPONGES. 
1 Sponge in alcohol (section ) 
2 Skeleton of Horny Sponge. — 
3 25 sections of Horny Sponge. 
4 Model of section of sponge, showing cilia cells etc. 
5 Tube Sponge with dried flesh. 
6 Slide for microscope, showing portion of horny fiber 
of Tube Sponge, illustrating tubular structure and arrested 
growths of fiber branches. 
7 Logger-head Sponge. 
8 Net Sponge. 
9g Cord Sponge. 
10 Slide with spicules of Marine Spiculigenous Sponge. 
tI 25 sections of Spiculigenous Sponge. 
12 25 sections of Finger Sponge to show water system. 
13 Section of Gray Cup Sponge. 
14 Green Cup Sponge. 
15 Purple Sponge. 
6 Section of Creeping Sponge- 
