NO. lO TROPISMS OF LEPIDOPTERA McINDOO 59 



(80) Schroder, Chr. 



1912. Handbuch der Entomologie. Jena. 



(81) Snodgrass, R. E. 



1926. The morphology of insect sense organs and the sensory nervous 



system. Smithsonian Misc. Coll. 77 (8) : 1-80, 32 figs. 



(82) Spuler, a. 



1927. Codling moth traps. Wash. Coll. Sta. Bull. 214, 12 pp., 4 figs. 



(83) Stear, J. R. 



1928. Some results with bait pans against the oriental moth, L. molcsta, 



Busck. Journ. Econ. Ent. 21:565-571. 



(84) Stricht, O. van der 



1909. Le neuro-epithelium olfactif et sa membrane limitante interne. 

 Mem. Acad. Roy. de Med. de Belgique 20 (2) : 1-45, 2 pis. 



(85) Tragardh, I. 



1913. Oil the chemotropism of insects and its significance for economic 



entomology. Bull. Ent. Research 4:113-117. 



(86) Turner, C. H. 



1914. An experimental study of the auditory powers of the giant silk- 



worm moths (Saturniidae). Biol. Bull. Mar. Biol. Lab. Woods 

 Hole 27:325-332. 



(87) and Schwarz, E. 



1914. Auditory powers of the Catocala moths; an experimental field 

 study. Biol. Bull. Mar. Biol. Lab. Woods Hole 27:275-293. 



(88) VOGEL, R. 



191 1. Ueber die Innervierung der Schmetterlingsfliigel und iiber den 



Bau die Verbreitung der Sinnesorgane auf denselben. Zeit- 

 schr. Wiss. Zool. 98:68-134, 14 figs., 3 pis. 



(89) 



1912. Ueber die Chordotonalorgane in der Wurzel der Schmetterlings- 



fliigel. H Zeitschr. Wiss. Zool. 100:210-244, 8 figs., 2 pis. 



(90) Washburn, M. F. 



[1923]. The animal mind. New York. 386 pp., illus. 



(91) Yerkes, R. M., and Watson, J. B. 



191 1. Methods of studying vision in animals. The Behavior Mono- 

 graphs X (2) : IV -f 90, 13 figs. 



(92) Yetter, W. p., Jr. 



1925. Codling moth work in Mesa County. i6th Ann. Rep. Coll. Sta. 

 for 1924, Circ. 47:32-40. 



(93) Yothers, M. a. 



1927. Summary of three years' tests of trap baits for capturing the 

 codling moth. Journ. Econ. Ent. 20:567-575, i fig. 



