THE LITTLE BROOK GONE DRY 311 
aster. Such a meadow glade is sure to be the home of many 
little rodents, such as meadowmice and shrews. If we look 
among the grass about the flower-clumps, we will find their 
shallow runways at the surface of the ground. 
Study 46. A Brook Gone Dry 
This is a study for a dry seasonin midsummer. The brook 
chosen for it should be flowing through water-holding soils, 
and it should be one that is ordinarily a “‘living” brook, but 
that has succumbed to the drouth. 
The program of work will consist of a survey of a portion 
of the brook-bed and its borders, of sufficient extent to in- 
clude typical portions, such as riffles and pools and miniature 
flood-plains. Brookside plants are to be observed, as well as 
all signs of animal life; also the more obvious relations of the 
water supply and the brook to different levels of adjacent 
fields. Observe what kinds of plants have succumbed to the 
drouth and where situated. 
The record of this study may consist of: 
xz. A sketch-map of the portion of the brookside studied, 
showing location of pools, riffles, rock ledges, flood-plains, 
leaf-drifts, etc., and showing also the principal natural plant 
formations by the brookside. 
2. Lists of plants and animals found in the more typical 
situations, with notes on their condition as affected by the 
drouth. List all plants found in the brook-bed, whether 
they belong there or whether they be chance seedlings of 
land plants springing up in unsuitable places. 
