Henchman. — Nervous System of Limax. 



PLATE V. 



All figures magnified 250 diameters. 



Fig. 60. The left surface of a section cut parallel to the sagittal plane from an 

 embryo of the ninth day. The section passes through a few cells of 

 the cerebral, the pedal, and the visceral ganglia of the right side of 

 the body, and also shows a section of the right otocyst. Killed in 

 Perenyi's fluid, and stained in alcoholic borax-carmine. 



" 61. (Consult explanation of Figs. 28-31, Plate III.) Sagittal section (the 22d) 

 to show the abdominal ganglion, which lies embedded in the ectoderm 

 anterior to the pleural groove. 



" 62. (Consult explanation of Figs. 32-47, Plate III.) The 32d section of the 

 series, showing a transverse section of the cerebral commissure and a 

 portion of the left buccal ganglion. 



" 63. (Consult explanation of Figs. 28-31, Plate III.) The 15th section of the 

 series ; it passes through the left cerebral, the pedal, the pleural, and 

 the visceral ganglia, and the wall of the left otocyst. 



" 64. (Consult explanation of Fig. 62.) The 24th section; it shows the inter- 

 nal end of the cerebral invagination and the cell proliferation to form 

 the larger part of the brain of the left side. 



" 65, 66. Compare explanation of Figs. 48, 49, Plate III. 



" 65. The 91st section of the series, showing transverse sections of the buccal 

 commissure and the connective between the abdominal and the left 

 visceral ganglia. 



" 66. The 102d section of the series; it passes through the abdominal ganglion. 



" 67. (Consult explanation of Fig. 62.) A section through the right visceral 

 ganglion. 



" 68. The posterior surface of a transverse section from an embryo of the 

 eleventh day. It shows the right visceral and the abdominal ganglia. 

 Killed in Perenyi's fluid, stained in Czoker's cochineal. 



11 69. The second section anterior to Fig. 68, passing through the visceral 

 ganglion of the right side. 



(Additional sections from this specimen are shown in Figs. 77-80, 

 Plate VI.) 



