Il6 GEORGE O. SHINJI. 



'LITERATURE CITED. 

 Anderson, Stuart 



'90 Nickel and cobalt: their physiological action on the organism. Journ. of 



Anat. and Physiol., Vol. XVII. 

 von Baehr, W. S. 



'09 Die Oogenese bei einigen viviparen Aphiden usw. Arch. Zellf., Vol. III. 

 Clarke, W. T. 



'03 Wing development in plant lice. Journ. of Tech. U. C. Student Publ., 



Vol. I., No. 3. 

 Ewing, H. E. 



'16 Eighty-seven generations in a parthenogenetic pure line of Aphis avenoe 



Fabr. BIOL. BULL., Vol. XXXI., No. 2. 

 Fischer, M. H. 



*oo On the production and suppression of glycosuria in rabbits through elec- 

 trolytes. U. C. Publ. Physiol., Vol., I., No. 9. 

 Herbst, C. 



'93 Experimentalle Untersuchungen iiber den Einfluss der veranderten chem- 

 ischen Zusammensetzung des umgebenden Mediums auf die Entwickelung 

 der Tiere: I. Versuche an Seeigeleiern. Zeitsch. Wissensch. Zool., Vol. LV. 

 Loeb, J. 



'08 Ober den Einfluss von Alkalien und Sauren auf die Embryonale Entwicke- 

 lung und das Waschstum. Arch. Entwicklungsmec., Vol. VII.. 

 Morgan, T. H. 



'09 A biological and cytological study of sex determination in Phylloxera and 



aphids. Journ. Exper. Zool., Vol. VII. 

 Neiils, J. D. 



'12 Wing production in aphids. Entom. News, Vol. XXIII. 

 Slingerland, M. V. 



'93 Notes from Cornell Insectory, II. Some observations upon plant lice. 



Vol. XXI. 

 Tannreuther, Geo. W. 



'07 History of germ cells and early embryology of certain aphids. Zool. 



Jahrb. Abt. Anat. u. Ont., Vol. XXIV. 

 Woodworth, C. W. 



'08 Winged aphids. Entomol. News, Vol. XIX. 



