PROCEEDINGS 



OF THE 



LINNEAN SOCIETY OF LONDON. 



(OXE HUNDRED AXD SIXTEENTH SESSION, 1903-1904.) 



November 5th, 1903. 

 Prof. Sydney H. Vines, F.R.S., President, in the Chair. 

 The Minutes of the last Meeting were read and confirmed. 



Mr. Thomas Archibald Sprague was elected, and Mr. William 

 Dennis and Mr. Bertram Henry Bentiey were admitted Fellows 

 of the Society. 



Dr. W. G-. EiDEWooD exhibited the frontal bones of a Horse 

 showing rudimentary horns, for the loan of which he was indebted 

 to Mr. Arthur Broad, a veterinary surgeon of Shepherd's Bush. 

 There was no record as to the breed, sex, or age of the horse. 

 The bony protuberances were about 3 inches apart, and were set 

 upon the curved ridges that constituted the auterior margins of the 

 areas of origin of the temporal muscles. In the natural sloping 

 position of the head in the living horse they would have been 

 vertically above the orbits. The bases were broad and spreading, 

 and the left boss was larger than the right ; it stood about half an 

 inch above the general surface of the frontal bone, and its flattened 

 extremity was oval and measured | inch by | inch. There was a 

 general but slight tendency to exostosis over the right temporal 

 area. Dr. Eidewood pointed out that the exceptional cases of 

 horny bosses occurring in horses could hardly be regarded as 

 instances of reversion, as had been done at the previous meeting 



LIXN. SOC. PROCEEDINGS. — SESSION 1903-1904. 6 



