WiUTE. — Antennal Glands. 



PLATE 1. 



(In Fig. 1 anterior is up on the plate ; in Fig. 2 the dorsal edge of section is up ; 

 in Fig. 14 the ventral edge of section is down, tlie posterior edge to the right.) 



Fig. 1. Dorsal view of right gland of adult with greater part of vesicle removed. 



X 2. (Drawn by Mr. K. Hayashi.) 

 Fig. 2. Anterior face of a transverse section through left gland of adult about 



^ mm. posterior to hilus. X 14. 

 Fig. o. Section of a fold in the floor of the endsac, together with adjacent walls 



of labyrinth tubule. X 350. 

 Fig. 4 Cells, showing globules, from wall of endsac. X 410. 

 Fig. 6. Cells, containing crystals (see Fig. 6), from wall of endsac. X 410. 

 Fig. 6. Crystals (probably artifacts, see p. 164 at text), from cells of endsac wall. 



X410. 

 Fig. 7. Section of fold in wall of a labyrinth tubule showing formation of globules. 



X410. 

 Fig. 8. Section of wall of labyrinth tubule showing striate cuticula of epithelial 



cells. X 410. 

 Fig. 0. Surface view of epithelium from posterior region of vesicle. X 410. 

 Fig. 10. Transverse section of wall of vesicle through a region where muscular 



layer is thick. The muscle cells are cut obliquely. X 410. 

 Fig. 11. Transverse section of wall of vesicle through a region where muscular 



layer is thin. X 410. 

 Fig. 12. A single muscle cell teased from wall of vesicle. X 410. 

 Fig. 13. Region of nucleus from a cell similar to that of Figure 12. X 900. 

 Fig. 14. Lateral face of a proximo-distal section through left second antenna in 



the region of the tubercle on which the duct opens. X 27. 



