OF WASHINGTON. 201 



21. A contribution to the study of the spider fauna of the Arctic 



regions. 



Proc. Entomol. Soc. Washington, vol. 2, no. 2, June, 1892, pp. 

 186-200. 



22. Note on the classification of the Ixodidae. 



Proc. Entomol. Soc. Washington, vol. 2, no. 2, June, 1892, pp. 

 232-236. 



23. Contributions to the knowledge of the life history of Arach- 



nida. 



Proc. Entomol. Soc. Washington, vol. 2, no. 2, June, 1892, pp. 

 252-255- 



24. Die Spinnen Amerikas Epeiridae von Graf E. Keyserling 



nach dessen Tode herausgegeben von Dr. George Marx, 

 Vierter Band. 

 Nurnberg, 1892. Verlag vtm Bauer & Raspe (Emil Kiister). 



25. Annual address of the President : On the morphology of the 



Ticks. 



Proc. Entom. Soc. Washington, vol. 2, no. 3, December, 1892, pp. 

 271-287. 



26. On spiders' web. 



Proc. Entom. Soc. Washington, vol.2, no. 4, June, 1893, pp. 385- 

 388. 



27. On a new genus and some new species of Araneae from the 



west coast of Africa, collected by the U. S. steamer Enter 

 prise. 



Proc. U. S. Nat. Mus., vol. 16, October, 1893, pp. 5^7-590 ; pi. 

 LXX. 



28. Degeneration by disuse of certain organs in spiders. 



Proc. Entom. Soc. Washington, vol. 3, no. I, March, 1894, pp. 

 26-27. 



29. Continuation of the life history of the Whip-tail scorpion. 



Proc. Entom. Soc. Washington, vol. 3, no. I, March, 1894, p. 54. 



30. [Amblyomma tuberculatum Marx, n. sp.] 



Insect Life, vol. 6, no. 4, May, 1894, pp. 314-315. 



To this list should probably be added a paper on the Arachnida 

 collected by Dr. G. Bauer on the Galapagos Islands, written in 

 the German language and sent for publication to the Zoologische 

 Jahrbiicher. The exact title, however, is not known. 



