PLANTS SPREAD BY MEANS OF ROOTS. 
11 
giving us at least four grubs, or clusters of sprouts, all 
originally coming from one acorn ; and so the matter 
might go on. This is slow traveling, I admit, but there is 
nothing to hinder nature from taking all the time she 
wants. 
Fig. 5. — Part of a grub of white oak, still alive and spreading over 
the ground, the central portions dying, the margins alive and 
spreading. 
