12 Contents 



CHAPTER V 



Adjustment to Conditions of Aquatic Life 



I. Individual Adjustment, p. 242. i. To open water: Flotation, p. 243. 

 Swimming, p. 249. 



2. Adjustment to shore life, p. 251. xYvoidance of silt, p. 252. Bur- 

 rowing, p. 254. Shelter building, p. 257. Withstanding current, p. 258. 



3. Adjustment of life cycle: Encystment, p. 261. Winter eggs, p. 266. 



4. Readaptation to aquatic life: Plants, p. 270. Animals, p. 273. 



//. Mutual Adjustment, p. 282. i. Insectivorous plants, p. 283. 

 2. The larval habits of river mussels, p. 286. 



CHAPTER VI 



Aquatic Societies 



I. Limnetic Societies. i. Plancton, p. 294. Seasonal range, p. 302. 

 Plancton pulses, p. 305. Distribution in depth, p. 307. 



2. Necton, p. 313. 



II. Littoral .Societies, i. Lenitic Societies, p. 315. Plants, p. 318. Ani- 

 mals, p. 324. Spatial relations of lenitic animals, p. 326. The life of 

 typical lenitic situations, p. 333. Of ponds, p. 334. Of marshes, p. 

 341. Of bogs, p. 348. Of streatn beds, p. 356. 



2. Lotic societies, p. 363. Plancton gathering forms, p. 364. Free 

 living foragers, p. 368. Shelter-building foragers, p. 371. 



CHAPTER VII 

 Inland Water Culture 



I. Al'origiinit water culture, p. 377. 



II. Water crops: Plants, p. 379. Animals, p. 382. Fish culture, p. 384. 

 The forage problem, (i. 387. Staple forage crops, p. 389 The way 

 of economic progress, p. 399. 



///. Water culture and civic improvement, p. 401. Reclamation enterprises: 

 Waste wet lands, p. 402. Reservoirs, p. 403. vScenic improvement, 

 p. 404. Private water culture, p. 406. Swamp reservations, p. 408. 



BIBLIOGRAPHY p_^i. 



List of initials and tail-pieces p_ _,,(, 



Index p^ ^,j 



