I'll 



MlilMSTIC VARIATION. 



[PART i. 



pair of ribs. The appearance of the next vertebra is shewn in the 

 ti_rui' < Kr4. K), I.). Anteriorly, and as far as the level of the 

 I" '-! -ri'r surface of the transverse processes, it is normal, save that 

 n- neural spine is rather small from before backwards. The trans- 

 verse processes bear a pair of normal ribs. But behind this pair 

 of transverse processes the parts, so to speak, begin again rising 



in into a neural spine, and growing outwards into a second pair 

 of transverse processes, with a second pair of normal ribs. Poste- 

 riori \ a_';iin the parts are normal. This specimen is described 

 in th- Catalogue of 1858, as '14-Sth and 149th vertebrae anky- 

 l..-.-d," but upon a little reflexion it will be seen that this account 

 mi sseutial point. For the bone is not two vertebra? 



-imply j'-iii'-d together as bones may be after inflammation or the 



\ l>ut it is two vertebra.- whose adjacent parts are not formed, 



II 



of vertebra in one specimen of 



"- 150 ., from the ri^.t aide, shewing the 



the L48th and L49th. The condition on the left Jdeia 



Ww " f " L65 167, shewinc .hmlicitv of 



Onthiamdeil bears two ribi. T!U. t s de is 



nonnal. (Prom alwleton, m Coll. s M:,_. Nl , ,-,., , 



