EXPLANATION OF PLATES 379 



PLATE XI 

 Fig. 55. Brachial Plexus, and Nerves of the Fore-limb, semi-diagrammatic. The nerves 

 are those of a right limb seen from the ventral side. Distal to the shoulder, the 

 extensor nerves are black and the flexor nerves clear. The position of the humero- 

 scapular joint is shown. 



PLATE XII 



Fig. 56. Sciatic Plexus and Nerves of the Hind-limb, semi-diagrammatic. The treat- 

 ment has been the same as in the previous figure. 



PLATE XIII 



Fig. 57. Nerves of the Orbit and the Eye Maxr/^j-, shown semi-diagrammatically. The 

 M. retractor bulbi and M. rectus posterior have been turned back. Normally 

 the former muscle would encircle the optic nerve. The oculomotor nerve is black, 

 while the other nerves have been left clear. The positions of the orbital margins, 

 the nasal capsule, and the internal naris have been indicated in outline. 



Fig. 58. 5/i50^-e'^j-j^/f(?/"//^^ Or^//, somewhat schematized. The arteries are striped and 

 the veins have been left clear. The position of the antrum petrosum laterale lies 

 between the processes of the palato-pterygoid. The limits of the orbit are shown in 

 outline. 



Fig. 59. Heart, seen from the dorsal side. The pericardial attachment is indicated by a 

 heavy dotted line, X 4. 



Fig. 60. Heart, seen from the ventral side. The pericardial attachment indicated as 

 above, X4. 



PLATE XIV 



Fig. 61. Scheme of the Arterial System viewed from the ventral side. The most dorsal 

 vessels are black, the most ventral have been left clear, and the intermediate ones 

 have their relative depth indicated by the intensity of the striping. The positions 

 of the limb axes are indicated thus, 0. 



PLATE XV 



Fig. 62. Scheme of the Venous System, viewed from the ventral side. In general the 

 deeper vessels are shown on the left of the figure. The limb axes are indicated as 

 above. 



PLATE XVI 



Fig. 63. Dissection of the Pelvis from the ventral side showing the Renal-portal 

 System of veins and the related Arteries. On the left side of the figure the pelvic 

 girdle is shown cut through its symphysis and turned back, and on this side also 

 a semi-diagrammatic transverse section of the thigh is shown. On the right of the 

 figure the head of the femur and the whole of the pelvic girdle, with the exception 

 of a small portion of the ilium, have been removed, while the muscles on this side 

 are incompletely drawn to allow room for the lettering. The trunk muscles an- 

 teriorly and the caudal muscles posteriorly are shown in semi-diagrammatic trans- 

 verse section. 



PLATE XVII 



Fig. 64. Dorsal Aorta carefully drawn from a single female specimen, together with 

 the post-cardinal veins and the cervical and abdominal portions of the sympathetic 

 nervous system, X 2|. 



