282 BENJAMIN P. YouNG 
Westwoop, J. O. Observations upon the eighteenth number of the 
Zoological Journal. Zool. journ. 5:326-329. 18381. 
The entomologist’s text book, p. 1432. 1838 a. 
On the comparative structure of the scutellum and other termi- 
nal dorsal parts of the thorax of winged insects. Ent. mag. 5:459-469. 
1838 b. 
Memoir 39, The Genetic Relations of Plant Colors in Maize, the fifth preceding number in this series of 
publications, was mailed on July 19, 1921. 
