TABLE OF AUTHORS AND REFERENCES 



22. The Rufous or Thatching Ant, of Dakota and Colo- 



rado. Acad. Nat. ScL, Philadelphia, 1884, pp. 57 sq. 



23. The Sense of Direction in a European Ant (Formica 

 rufa). Acad. Nat. ScL, Philadelphia, 1887, pp. 336 

 sq. (Mounds, Road-Making, Sentinels.) 



24. American Spiders and Their Spinning-Work. Vols. 



i., ii., iii., quarto. P. Blakiston & Son, Philadelphia. 



Ml. MOLLER, DR. ALFRED. 



Die Pilzgiirten einiger siidamerikanischer Ameisen. 

 Jena, Gustav Fischer, 1893. 



MG. MOGGRIDGE, J. TREHERNE, F.L.S., London, 1873. 

 Harvesting Ants and Trap-Door Spiders. 



My. MAYR, DR. GUSTAV. 



1. Die Formiciden der Vereinigten Staaten von Nord- 



amerika, Wien, 1886. 



2. Siidamerikanische Formiciden. Wien, 1887. 



Ro. ROMANES, GEORGE J. 



1. Animal Intelligence. D. Appleton & Co., N. Y., 



1895. 



2. Intelligence of Ants. Popular Science Monthly, 



October, 1881. 



Sa. SAUSSURE, HENRI DE. 



Les Fourmis Americaines. Archives des sciences phy- 

 siques et naturelles, t. x., Geneve, 1883. 



St. STANLEY, HENRY M. 



Through the Dark Continent. Vols. i., ii., Harper & 

 Brothers, N. Y., 1878. 



Tr. TREAT, MRS. MARY. 



1. A Chapter in the History of Ants. Harper's Maga- 



zine, January, 1879, p. 177. 



2. My Garden Pets. D. Lothrop Co., 1887. 



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