354 REVIEWS. 



tudes of the different divisions of the cerebral cavity can be estimated 

 for each vertebra, whose bodies are now fully visible. The length, 

 breadth, and heij?ht of the cerebrum may be easily measured, but 

 the solid contents are not so readily determined in this way. Casts 

 of the interior are required to effect this purpose. 



Having thus stated the system of measurements proposed by 

 Prof. V. Baer, we would remark that it appears to us defective, prin- 

 cipally in the circumstance that it does not afford sufficient data for 

 estimating the relative proportions of the different divisions of the 

 cranium ; or, at any rate, not so completely as we think this should 

 be done. Otherwise, we are ready to adopt nearly all his measures, 

 though simply for convenience sake, placing them in a different order 

 of succession, and adding those we deem necessary. 



We conceive that a comparatively small number of measures will 

 suffice for the purpose of showing : — 



1. The proportions of the entire cranium as regards length, 

 breadth, height, and internal capacity (when the skull is sufficiently 

 perfect), and consequently to afford some idea of its comparative 

 dimensions. 



2. The comparative dimensions of i}iQ frontal, parietal and occi- 

 pital regions, corresponding to the main divisions of the brain. To 

 Avhich should be added, to complete an ethnological view of the skull, 

 the estimation of, 



3. The degree of pro- or orthognathism, or what is equivalent to 

 the so-termed facial angle ; the situation of the foramen magnum or 

 rather of its anterior border ; the breadth of the face at the level of 

 the external orbital processes of the frontal bone, and of the zygo- 

 mata ; and the width of the ethmoidal bone or between the orbits. 



All these measures may be comprised in from 25 to 30 columns 

 at most, and they appear to us sufficient for any purpose to which 

 Craniometry can be applied, while some of them, it is possible, may 

 be omitted without harm. Placed in order they would stand thus : — 



