238 lierrij and BilcJinef: 



Fioiii the t'(ti-e<^oing t-oinparisons, Ijoth direct and indirect, it is 

 clear that as regaids ulasseis tlie giealer tlic intelligence demanded 

 bv tlie profession tlie greater the amount of tlic cubic capacity of 

 J)rain })08sssed ])V that t-lass; in other words, as regards classes in 

 general, the evidence herein adduced distinctly poi7its to a corre- 

 lation between intelligence and size of head. 



We have already stated that the '355 criininals of the present 

 investigation have l)een divided by us into ten groups according 

 to the nature of theii' crimes, ajid in view of the general conclusion 

 contained in the last ])aragraph, we have thought it advisable to 

 examine these ten classes, to see if that conclusion would be sup- 

 ported or not, by the various criminal groups themselves. 



Of these ten groups the t)ue means, probable errors, and stan- 

 •flard deviations of the cubic capacities of brains, with the minimum 

 nnd maximum figures in each group, are as follow : — 



'ioo Cr'imhmls divided into 1(> (Tronpn accordiwj to thf natnre of the. 



crime. 



No. Natui-e of rriiiie. 



6. Cattle Stealino- 



26. Inebriety 



15. Assault and Woundiiii^- 



l-M. Larceny 



26. House and Sliopbi'eaking - 



56. Sexual Offences 



11. Murder and Manslaugbtei 



-)2. Miscellaneous 



14. Forgery - - - 12H7 - 14r)9±21.ir) - 1 17.31 ±14.95 - 170J 



5. Embezzlement - - 1384 - 1475±31.43 - 1(»3.1»4±22.18 - 1645 



If now we express the relative amounts of brain cajiacity possessed 

 by these several classes of criminals, and ilmsr other learned classt-s 

 selected by us for comparison in terms of the lowest class of all, 

 namely, the cattle stealers, avIiosc cubic capacity of brain shall be 

 iissumed to be e(|ual to lOO, we obtain the following results, where 

 Are also shown the minimum .'ind iiiaNJmum langes of variation in 

 the class : — 



1. Cattle Steal ill- - 



2. 26 Inebriety - - - - 

 .3. 1.5 Assault and Wonndiii;^ - 

 4. 144 Larceny - - . . 

 •5. 2G House aiul Slioj)l)i<'akiii;j; - 



6. o6 Sexual Offenee.s 



7. II Murder and Manslaii;^hter 



8. 52 Mi.sce)fa neons crimes 



