2IO Journal of Comparative Neurology. 



Fjg. 2y. The terminations of ihe same magnified about 586 diameters. 

 Fig. 28. Association fibers terminating in the anterior roots. This figure 

 should be viewed from the adjacent corner of the plate. See text, p. 160. 



PLATE XXII. 



Fig. 2g. Tracheal terminations in the calyx of the mushroom bodies, x 

 102. Frontal section. 



Fig. JO. Fiber 36 of diagrams, x 121. Sagittal section. 



Fig. ji. Fibre 10 of the diagrams, x 102. It originates from a cell sit- 

 uated above the antennal morula. Sagittal section. 



Fig. j2. Fibers from an oblique horizontal section. One vsrith arborescent 

 terminations in the central body Two passing from one inner root to the re- 

 gion above the anterior root of the opposite side. One passing forwards over 

 the central body and branching in the region in front of it. 



Fig. 3j. A twisted fiber from the region below and behind the optic body. 

 Sagittal section. 



Fig. 34. Fiber from a sagittal section, x 121. It passes below an inner 

 root and sends a branch up over the union of the same with the stalks. 



Fig. j^. Fiber passing antero-posteriorly below the central body and send- 

 ing several branches up in front of the latter, x 121. 



Fig. j6. A portion of a motor fiber with its cell-body. See text, p. 174. 



Fig. jj. Fiber from the antennal region terminating arborescently in the 

 central body. From a frontal section, x 121. 



Fig. jS. Fibers of the posterior inferior dorso-cerebral commissure. 

 X 102. 



Ftg jg. Fibers apparently belonging to the antenno-motor nerve, and one 

 commissural fiber of the ventro cerebron. 



Fig. 40. Three fibers from two consecutive median sagittal sections. All 

 three are seen to send a process each into the central body. A fragment in the 

 lower part of the figure may be a portion of the outer or right hand fiber of the 

 upper part of the figure, x 121. 



Fig. 41. A fiber from the base of the central body sending long branches 

 down into the ventro-cerebron and to the anterior portion of the ventral cord. 

 X 121. 



Fig. 42. Two fibers terminating in a so-called ocellar ganglion, x 121. 



Note. — On page 174, line 8, for '-(p. )" read "(p. IGl)." 

 ERRATA. 



Page 133, line 5, add 1895-6. 

 " 18-1, " 21, for Grylotalpa read Gryllotalpa. 

 " 192, " 22, delete the copper-. 

 " 192, " 23, " and a. 

 " 192, " 26, for Saiuomya read Somomya. 

 " 210, delete the note at the foot of the page. 



