124 Scientific Intelligence. 
ing their differential and subordinate characters. With regard to the 
term “ rib,” though it might be given to each moiety of the hemal arch 
of a vertebra, Prof. Owen would restrict it to that part of such arch to 
which the term ‘+ vertebral rib” is commonly applied; but, admitting 
the wider application, yet the bony diverging and backward projecting 
appendage of such rib or arch was a different thing from the part sup- 
porting it. Arms and legs might be developments of costal append- 
ages, but were not the ribs themselves liberated,—although liberated 
ribs might perform analogous functions, as in the serpents and draco 
volans. 
3. Remarks on the Melonites multipora; by G. Exasumann, M. D., 
(communicated for this Journal. na single slab of limestone about 
r square feet in size, in th ion of the Western Academy of 
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quarries near the river bank. I have for years examined all the quarries 
ina 
ferent plates are so closely connected that they cannot be any longer dis- 
tinguished. At the upper end the aree majores run out quite narrow, 
and the aree ambulacrorum are wider ; the plates are all small there, and 
in many specimens distinctly separated. I could see nothing of the oral 
near the upperend. They have, as Drs. Norwood a 
remarked, two vertical rows of larger hexagonal plates in the middle, 
