395 



a work of the late Dr. Cheyne, on a Deranged State of the 

 Faculty of communicating by Speech or Writing.* 



Dr. Allman read a paper " on a New Genus of Hydra- 

 form Zoophytes." 



The author discovered the animal on which he founded 

 the new genus in the Grand Canal near Dublin, in October, 

 1843. The genus of which this zoophyte constitutes as yet 

 the only known species, will find a place in the family of the 

 tubulariadce, and occupies a position between coryne and 

 tubularia, differing from the former in the possession of a 

 polypedome, and from the latter in the scattered arrange- 

 ment of its tentacula. The tentacula, as in both the last 

 mentioned genera, are filiform; and in this character a point 

 of distinction is at once found between the new genus and 

 Ilermia, Johnst. 



To the new zoophyte Dr. Allman assigned the name 

 Cordylophora lacustrts. 



May 22. 



SIR Wm. R. HAMILT0N,LL.D., President, in the Chair. 



Right Hon. the Earl of Dunraven was elected a member 

 of the Academy. 



Dr. Osborne read some observations on the deprivation 

 of the faculty of speech while the intellect remains entire, 

 and in which the defect does not arise from paralysis of the 

 vocal organs. The communication was intended as a sequel 



* This work having been since published, the extracts are not here given. 



