Station 32. 
Station 33. 
Station 34. 
Station 35. 
Station 36. 
Station 37. 
Station 38. 
Station 30. 
B. 
Station 4o. 
Station 41. 
Station 42. 
Station 43. 
Station 44. 
OF 
Station 45. 
Station 46. 
Station 47. 
Station 48. 
Station 49. 
ANIMAL ENVIRONMENT 
IV. Pond Communities (chap. viii). 
Young ponds, Pond 1, Buffington, Ind., L.S. & M.S. R.R. 
or P. R.R., 22 miles southeast (1 miles east from station). 
Middle-aged pond, Pond 5, Pine, Ind., L.S. & M.S. R.R., 
24 miles southeast (pond at rear of station). 
Middle-aged pond, Pond 7, Pine, Ind., L.S. & M.S. R.R., 
24 miles southeast (pond to the right in front of station). 
Mature pond, Pond 14, Clark Junction, Ind., P. R.R., 
23 miles southeast (the fourth pond south of bridge over 
PRR tracks). 
Late mature pond, Pond 30, Clark, Ind., P. R.R., 25 miles 
southeast (pond parallel with main street and east of school) 
Senescent pond, Pond 52, Cavanaugh, Ind., South Shore 
Electric R.R., 27 miles southeast. 
Prairie ponds, Roby, Ind., 26 miles southeast, east side of 
Wolf Lake, between second and third icehouses. 
Morainic pond or small lake, Butler’s Lake, Libertyville, Ill., 
C.M. & St.P. R.R., 36 miles northwest. 
Temporary Pond and Swamp Communities. 
AQUATIC PHASES (CHAPS. VIII AND X) 
Young artificial temporary ponds, Pine, Ind., L.S. & M.S. 
R.R., 24 miles southeast (ponds 1 mile northwest of station). 
Middle-aged temporary ponds, Pine, Ind., L.S. & M.S. R.R., 
24 miles southeast (ponds 1 mile northeast of station). 
Prairie temporary ponds, south of Jackson Park, I.C. R.R., 
South Chicago Branch to Bryn Mawr, 10 miles south. 
Prairie temporary ponds, 81st St. and Stony Island Ave., 
electric railway from 63d St. and Jackson Park Ave., south. 
Temporary pond of prairie type, but being captured by 
shrubs, Pond 90 or 93, Ivanhoe Station, L.S. & M.S. R.R., 
to Gibson, Ind., and G. & I. R.R. to Ivanhoe (1 mile 
south of Ivanhoe), 36 miles southeast. 
Marsh, Forest Margin, and Prairie Communities 
Low forest margin (see Station 30). 
Intermediate forest margin, Beverly Hills, C.R.I. & P. R.R., 
12 miles southwest. 
High prairie, Chicago Lawn, 63d St. electric railway, 
11 miles southwest. 
High prairie (some low prairie), Riverside, Ill., C.B. & Q. 
R.R. or LaGrange electric railway, 12 miles west. 
Temporary forest pond of early stage, Pond 93, near 
Station 44. 
