thread from one radiating line to the next in a continuous 
course, passing about the center, making the turns as far 
apart as the spider can reach. When the spiral has been 
completed, the spider begins at the outer edge with a new 
line, going in the reverse direction and toward the center. 
The threads are now laid down much closer than before, and 
seem to be of a different character. The first was smooth ; 
the second is covered with a sticky liquid, to which objects 
adhere quickly. As the first line is met in laying the second 
course, the spider bites it off. There is considerable intelli¬ 
gence displayed in this work, and we may be highly amused 
in watching the proceeding. The spiders which make such 
webs run a few long threads to hiding places, and when an 
insect is caught in the web it is indicated over the connect¬ 
ing lines, when the spider promptly rushes out to secure its 
victim. 
I recently discovered several large black wolf-spiders in a 
lawn. The only surface indication of their presence was an 
occasional sharply-cut round hole in the ground. Some were 
an inch in diameter, and others one-half inch in diameter. 
The large ones contained females, the small ones males. 
The burrows were from three to six inches deep, ending in 
an enlarged chamber, without any visible lining of silk. During 
the summer a female was seen at the surface holding the 
cocoon of eggs in her mandibles. Later she was seen with 
the numerous young clinging to her back, but she quickly 
descended when approached. In the fall I dug up a female 
which measured three inches from hind foot to front foot, 
and placed it in a bottle with a male one and one-half inches 
long. In less than five minutes the former seized the latter, 
and in about two hours sucked it dry. 
3 
