308 NATURAL HISTORY OF THE FARM 
water, times in- 
numerable, thru 
past centuries: 
and we know that 
nature maintains 
in the brook only 
such plants and: 
animals as are 
Fic. 133. “Pitchforks" or “Spanish Needles" in flower: Capable, in one 
see fig, 39 on page 69 for fruit. 
way or another, 
of meeting the exigencies of such times as this. 
If the aquatic plants have disappeared, and the aquatic 
animals also, save for a few that may be discovered hiding 
under trash in the moister places, there will be found plenty 
of semi-aquatic brookside things still remaining. There 
will be weeds of many sorts, overhanging and brushing 
against us as we pass up the channel; willow-herbs and 
pitch-forks (fig. 133) in the sun, and rich weed (fig. 134) in 
the shady places. Then there will be coarse and straggling 
Fic. 134. Richweed (Pilea pumila). 
