XXIV INDEX OF THE ILLUSTKAT1ONS. 



ANATOMY OF THE EAR. 



Denticulate laminae of the osseous zone, 100 diam. - Plate LXIX. Fig. 3 



Tympanic surface of lamina spiralis, 300 diam. - LXIX. 4 



Inner view of cochlearis muscle of sheep - LXIX. 5 

 Plexiform arrangement of cochlear nerves in ditto, 



30 diam. - - LXIX. 6 



VILLL 



Villi of foetal placenta, injected, 54 diam. - - LXII. 4 



Ditto of choroid plexus, 45 diam. - - LXIX. 9 



Plates VIIL, XVII., and XXXVIII., have been entirely omitted, in 

 order to make room for more important matter. Plate VIIL was to 

 have illustrated the solid constituents of the chyle : of these the principal 

 are the granular corpuscles so often figured in this work ; an entire 

 plate was therefore scarcely necessary to illustrate this subject. 

 Plate XVII. was to have exhibited the comparative anatomy of the 

 spermatozoa : this plate also could be well dispensed with. Lastly, 

 Plate XXXVIII. was to have shown the development of the dentinal 

 tissues : this, although the most requisite of the three plates, could also 

 be omitted without injury to the work. 



