W-3. Walnut River. Sec. 29, T. 32 S, R. 4 E. July 17. Pools and riffles below Tunnel Mill Dam at Winfield. Water clear.

W-4. Badger Creek. Sec. 6, T. 33 S, R. 5 E. July 17. Small pools. Average width 7 feet, average length 40 feet, average depth 8 inches. Water turbid and malodorous. Bottoms and banks mud. Much detritus present.

W-5. Timber Creek. Sec. 35, T. 31 S, R. 4 E. June 6. Intermittent pools, widely separated. Average width 9 feet, average depth 8 inches. Bottom mud and gravel.

B-1. Big Beaver Creek. Sec. 8, T. 35 S, R. 7 E. May 28. Isolated pools. Average width 10 feet, average depth one foot. Water turbid. Bottom rubble.

B-2. Little Beaver Creek. Sec. 18, T. 35 S, R. 6 E. July 21. Intermittent pools. Average width 10 feet, average length 35 feet, average depth 10 inches. Bottoms rubble, mud, and bedrock.

B-3. Big Beaver Creek. Sec. 28, T. 34 S, R. 7 E. July 22. Series of small turbid pools.

G-1. Grouse Creek. Sec. 5, T. 35 S, R. 5 E. May 30, September 5, and September 24. Intermittent pools in close succession. Average width 22 feet, average depth 16 inches. Water turbid on May 30 but clear in September. Bottom rubble. Steep banks. Little shade for pools.

G-2. Grouse Creek. Sec. 23, T. 34 S, R. 5 E. August 29. Series of shallow intermittent pools. Average width 42 feet, average length 120 feet, average depth 15 inches. Bottom bedrock and mud. (Plate 9, fig. 2.)

G-3. Grouse Creek. Sec. 6, T. 34 S, R. 6 E. July 12. Intermittent pools. Average width 20 feet, average length 65 feet, average depth 14 inches. Bottom bedrock and gravel. Justicia americana L. abundant.