160 VARIETY OF OPINIONS. 



Everybody admits the segmentation of the skull, 

 but few agree as to the number of its segments or 

 " cranial vertebrae ;" whilst men of authoritative stamp, 

 like Huxley, do not admit these segments to be verte- 

 bral in character. Goethe adopted six cranial vertebrae, 

 Oken in 1807 only three, Bojanus in 1818 increased 

 the number to four, G. St. Hilaire in 1824 admitted 

 seven, while Cams in 1827 adopted Goethe's six. The 

 prevailing opinion is said to be in favour of three 

 vertebrae — the occipital, and the posterior and anterior 

 sphenoidal, as forming the cranial part of the skull ; 

 Owen believes in a fourth — namely the nasal. Good- 

 sir recognised seven sclerotomes or segments in the 

 mammalian and crocodilian head ; but only six in the 

 other vertebrata. General concurrence in Goodsix's 

 views need not be looked for, though it may probably 

 be conceded that the theories be has advanced pos- 

 sess a suggestiveness of their own, and that in his 

 endeavours to expound them he has called in the 

 teachings of embryology, and sought through that 

 channel to implant them on a scientific basis. It is 

 something to be able to say that his work has not been 

 without its influence on his own generation, both of 

 the London and Edinburgh Schools, and that it cannot 

 fail to receive attention in all the morphological specu- 

 lations of the future. 



Professor Cleland of Galway, one of Goodsir's most 

 distinguished pupils, in his paper, " On the Relations 

 of the Vomer, Ethmoid, and Intermaxillary Boues" 

 {Transactions of Royal Society, London, 1861), says — 



