COMPOSITE SNARES AND SECTORAL ORBS. 



143 



spirals were carried around in loops, quite as represented ; the hub was 

 meshed and surrounded by a notched zone. A bit of cotton cord that 

 clung to the handle had been utilized as a support for the foundation lines 

 on one side (on the right of the cut), and within a scant series of cross- 

 lines at the top a slight nest had been woven in which the little Zilla 

 rested. Her feet clasped a trapline attached to the hub by a deltatecl 



FIG. 133. Sectoral orb of young Zilla x-notata. woven under a basket handle. 



Natural size. 



terminus. The free space was decidedly marked, as it was in most of the 

 orbs made. 



My first opportunity to study Zilla in a natural site (uncolonized) hap- 

 pened to be upon the grounds of Mr. F. M. Campbell, at Hoddesdon, Hartz, 

 England. Later I noted the snares of great numbers of the genus in the 

 highlands of Scotland, particularly in the neighborhood of Loch Achray 

 and Loch Katrine. One especially interesting colony was lo- 



cated at the sluices which regulate the flow of water from Loch 



A Scotch 



Katrine. A foot walk crosses the stream, along which are short 

 iron posts and an iron rail. Vast numbers of Zilla had settled along the 

 cornices and panels of these posts, and from their nesting places had 



