Santa Clara, Cal., Feb. 19, 1898.
To the Editor:
—I wish to add a few observations and facts, regarding squirrels, gathered about the inhabitants of the trees of southwestern Michigan.During the breeding season squirrels like other quadrupeds are very apt to fight. During this time the males battle violently. Their mode of battle is to chase each other until a favorable opportunity presents itself for one or the other to dart beneath the flank of his adversary and bite off his testicles. Sometimes both males share the same fate at the same time. The chisel-shaped teeth together with the ability to take a large round object into the mouth of the squirrel, makes it an easy matter for this animal to maim his adversary in this way almost instantly.Instead of gray or fox squirrels castrating their own male young the credit must more often be given the agile