Plate a 
A. —One of the io by io inch quadrats permanently staked and ready for the season’s 
work. The interstices are one-half inch square. The area upon which this quadrat 
is located had just been burned when this photograph was taken. 
B. —A view of the same quadrat as is shown in A, taken a few weeks after burning. 
Note the clean, vigorous growth and the absence of last year’s litter. 
