ILLUSTRATIONS 



General view of the west end of Oneicla Lake, including Big 



Bay. 



Milton Point looking east. Frenchman Island in the distance. 

 A bouldery point with only Water Willow and Bulrush for 

 vegetation. 



Fig. 3. A bay-like habitat north of Long Point, looking north. The 

 bottom is very sanely. 



Fig. 4. Xickerson Bay, on the north shore near the outlet at Brewer- 

 ton. An example of a habitat with abundant vegetation. 



Fig. 5. A mussel fisherman on the Mississippi River with his flat- 

 bottomed boat rigged with two crowfoot dredges, each 12 

 feet long, and used to catch mussels for the pearl button 

 industry. 



Fig. 6. The larger snails living in Oneida Lake. 



Fig. 7. Snails and finger-nail shells of special value as the food of fish. 



Fig. 8. Seining fish on Long Island, a habitat favorable for shellfish. 



Fig. 0. Collecting shellfish on the rocky shore of Frenchman Island. 



Fig. 10. Four common clams or mussels living in Oneida Lake. 



Fig. 11. Invertebrate animals on sand bottom, water four feet deep. 



Fig. 12. Invertebrate animals on clay bottom, water four feet deep. 



Fig. 13. Invertebrate animals on mud bottom, water ten feet deep. 



Fig. 14. Invertebrate animals on boulder bottom, water 20 inches deep. 



Fig. 15. A good habitat for fish and shellfish near Fitzgerald Point, 

 north shore of Oneida Lake, near Brewerton. 



Fig. 16. Field laboratory at Brewerton, N. Y., at the west end of 

 Oneida Lake. 



