CHEMICAL SENSITIVITY OF TARSI OF PYRAMEIS 81 



6. The responsiveness to IM saccharose, 2M NaCl, and M/10 

 quinine hydrochloride shows no apparent relationship to the 

 nutritional condition of the animal. 



7. According to the scheme of measurement employed in the 

 present paper, the total response of all animals together was 100 

 per cent to IM saccharose, 84.7 per cent to M/10 quinine hydro- 

 chloride, and 51.6 per cent to 2M NaCl. 



8. Since the organs of the tarsi are contact chemoreceptors, and 

 since they are concerned with the discrimination of substances to 

 be taken as food, they may be appropriately termed organs of 

 taste, 



BIBLIOGRAPHY 



Browne, C. A., Jr. 1899 A chemical study of the apple and its products. 



Bull. Penn. Dept. Agriculture, no. 58, 46 pp. 

 MiNNiCH, D. E. 1921 An experimental study of the tarsal chemoreceptors of 



two nymphalid butterflies. Jour. Exp. Zool., vol. 33, pp. 173-203. 

 PtJTTER, A. 1911 Vergleichende Physiologic. Jena. 



