Notices respecting New Books, 365 



not any appearance of inflammation on the membranes lining 

 these cavities. 



On exposing the cerebellmn, the right lobe appeared 

 somewhat flaccid, in which a cist was placed containing 

 eight ounces of a brown straw-coloured fluid, not having any 

 communication with the fourth ventricle or other outlet. 



The optic nerves were small, soft, and of a brown colour. 



The other parts of the brain and nerves were natural. 

 We perceive that the reasoning faculty was more complete 

 than could have been expected. From such extensive de- 

 rangement of parts, is it not probable that the early and slow- 

 formation of the fluid, and consequent distension of the 

 lateral ventricles before the bones of the scull were com* 

 pletely ossified. Or capable of affording that resistance which 

 they are in the adult state, prevented in a great degree the 

 effects of pressure, by allowing the bones to enlarge from 

 the gradual pressure from within daring their more membra- 

 nous state ? as we see a comparatively trifling pressure on the 

 brain in the adult, when the bones are iucapable of exten- 

 sion, whether it be in consequence of external violence or 

 of inflammation, by which a fluid is effused into the lateral 

 ventricles, productive in a short time of the most serious 

 consequences. 



We also perceive that nearly one half of the substance of the 

 cereLelhim was destroyed, by its place being occupied by a 

 cist which contained eight ounces of a fluid; and yet the ca- 

 pability of associating ideas remained, which was also observed 

 in the case of miss M. See Phil. Mag. vol. xxix. page 169. 



Greville street, Hatton Garden, JOHN TaUNTON". 



Mav 24, 1808. 



LXVIII. Notices respecting Netv Books, 



i\j.R. Parkes has for some time been engaged in revising 

 and correcting the Chemical Catechism, in order toaccom- 

 tnodate every part of that work to the new discoveries of 

 Davy and others. A new edition thus amended, and with 

 other very considerable additions, is in the press, and will 

 be-ipfiady for delivery some time in June. 



Mr, 



