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62 McDermott and Crane, Amer. Nat., 1911, vol. 45, pp. 306-313. 

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63 Molisch, H., Rept. Smithsonian Inst., 1905, pp. 351-362 (No. 1685). 

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64 Muraoka, Ann. Chem. u. Physik, 1896, vol. 295, pp. 773-781. 



65 Nutting, C. C, Proc. 7th Internat. Zool. Cong., Boston, 1907. 



68 Osten-Saaken, v., Stettin. Entomol. Zt., 1861, vol. 22, pp. 54-55. 



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69 Putter, A., Ztschr. allg. Physiol., 1905, vol. 5, pp. 17-53. 



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62 Steche, O., Ztschrft. wissensch. Zool., 1909, vol. 93, pp. 349-40S. 



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65 Thomas, R. H., Nature, Lond., 1902, vol. 65, p. 223. 



66 Townsend, A. B., Amer. Nat., 1904, vol. 38, pp. 127-151. 



67 Trautz, Ztschr. physikal. Chem., 1905, vol. 53, pp. 1-111. 



68 Turner, Psyche, 1882, vol. 3, p. 309. 



69 Walter, A., Trav. Soc Nat., St. Ptrsbrg., 1909, vol. 40 (Livr. 1 C. R.), pp. 136-137. 

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