Edltorlid 281 



(d) Normal Curvo : ?/=y<fi~ '^"''t 



/i2„ = (2«-l)o-Vi,-2- 

 (6) C'urvc iif Type '■ 



(c) Curvo (if Type : 



Origin at modo and p = ay. 



/, X\l>h f x\>l 



Origin at nidde and 6 = aj+«2, r = m^-\-m.^-\-'2,, 

 nh (»«2 — "h ) , ™^' ("'■1 + 1 ) ( "'2 + 1 ) 



{d) Cnrvc of Type : 



Origin at -avjr frora luean and tun (j> = vlr, 



(ß) The general formula of reduction for 



1 dt/ a^ + a^x 



y dx Cf^■'^c^x+c^x^ + c^äfl-\■c^x*■\-...' 



Origin at the mcan Im, 



nc„li„ _ I + {(» + 1 ) Ci + «„} ^„ + {(« + 2) Cj + «,} fi„ + 1 



As a practieal illu.stration of the use of these formulae the reader is referred to a criticism of 

 Professor von Török's recent craniological werk appearing in this part of Biomctrika. 



Biometrika 11 3" 



