VOL. LXXXIII.] PHILOSOPHICAL TRANSACTIONS. 313 



centae, viz. that of itself, and that of the monster; and then into the substance 

 of the monster also, as appeared by the redness of the skin. When the in- 

 jection had become cold, the skin was carefully dissected off; in doing which it 

 was found that the upper foot had no bony connection, but became loose, and 

 only connected to the internal parts by cellular substance. The lower foot was 

 articulated to the inferior part of the tibia and fibula. 



The internal structure of the monster was composed of soft and bony matter. 

 On cutting into the former, it appeared of a homogeneous fleshy texture, but 

 without any regular or distinct arrangement of muscular fibres; and was very 

 vascular throughout. The bones which were surrounded by this fleshy sub- 

 stance were, the os innominatum, the os femoris, the tibia, and the fibula. 

 The relative situation of these to each other described the attitude of kneeling. 

 "With regard to the bones themselves, the os innominatum, and the os femoris 

 are both perfect, and of the size which we meet with in a fcetus at the full 

 period of utero-gestation ; but the tibia and fibula are much shorter than in 

 their natural proportion to the thigh bone. At the upper part, and towards the 

 inside of the os innominatum, was placed a little portion of small intestines, 

 loosely connected, by their mesentery, to the posterior edge of that bone, where 

 it is commonly united to the os sacrum. These intestines had a covering of 

 peritonaeum, and were very minutely injected. 



The next object was to trace the vessels of the funis, which was done with 

 great care. There appeared to be only 2, viz. an artery, and a vein; and these 

 passed on towards the inner surface of the os innominatum. As they approached 

 this bone, they gave off some branches to the surrounding parts, which quickly 

 became too small to be traced. The trunks then passed backward, towards that 

 part where the articulation with the os sacrum is generally found ; at which 

 place they went to the other side of the bone, where they distributed a great 

 number of small branches, and were at length lost in the surrounding parts. 



This was the whole of the internal construction of this very extraordinary 

 monster. There was not the smallest appearance of head, or vertebrae, or ribs. 

 There was neither brain, nor spinal marrow, nor nerves. It had no heart, nor 

 lungs. It contained none of the viscera subservient to digestion, excepting the 

 intestines already mentioned; nor any glandular substance whatever. This 

 being a monster of so singular a nature. Dr. C. begs leave to add, to the fore- 

 going description, a few observations, which the circumstances appear to him 

 naturally to suggest. 



The mere description of any monster is of very small utility, unless it tends 

 to explain some actions of the animal economy, before imperfectly, or not at all 

 understood. It is on this account that very little addition has been made to the 

 stock of our knowledge of natural history, from considering those monsters in 



VOL. XVII, S s 



