272 AMERICAN SPIDERS 



SAVORY, T. H., The Biology of Spiders, Sidgwick & Jackson, 



London, 1928. 

 SAVORY, T. H., The Arachnida, Edward Arnold & Co., London, 



'935- 



THORP, R. W. and W. D. WOODSON, Black Widow, Univer- 

 sity of North Carolina Press, Chapel Hill, 1945. 



WARBURTON, C, Spiders, The University Press, Cambridge, 

 1912. 



