48 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 59 
MEAN CEPHALIC INDEX IN VARIOUS NORTH AFRICAN GROUPS 
(Arranged from data given by Chantre. 1 ) 
Males 
No. of Cephalic 
Tribes Observer individuals index 
Arabs of Ougorla (?) Elisseieff 20 72.00 
Arabs of Oran (?) Bleicher 10 73.21 
Arabs of Sinai Elisseieff 20 73-87 
Arabs of Ouled Touarah Chantre 18 73.30 
Arabs of Ouled Ayaideh Chantre 41 b. s. 74.48 
Arabs of Ma'azeh Chantre . . . , 40 b. s. 75 oo 
Arabs of Alep Chantre 22 77.05 
Berbers of Aures Elisseieff 10 72.00 
Berbers of Chemini Bertholon 40 72.62 
Berbers of Menzel Bertholon 53 72.79 
Berbers of Ouled Harabi Chantre 29 72.82 
Berbers of Kroumirie Bertholon 358 73-99 
Berbers of Kama Bertholon 64 74-37 
Berbers of Djara Bertholon 14 74.80 
Berbers of Medjez-el-Bab Collignon 16 75.39 
Berbers of Chaouias Faidherbe 15 75.60 
Berbers of Palestro Prengrueber 184 76.04 
Berbers of Biskra Seriziat 180 76.07 
Berbers of Mozabit Amat . . : 50 77.03 
Berbers of Kairouan Collignon 61 77-59 
Berbers of Gerba Bertholon 330 79-94 
Ouled Nagama Chantre 21 75-26 
Ouled Aly Chantre 20 75.39 
Ouled Said Collignon 16 77.79 
Beoni-Maguel of Gerba Bertholon 34 82.24 
Ouled Zelofras of Gerba Bertholon 11 82.50 
Height of Head 
The height of the head measured by the writer throughout his 
investigations on the living, is that from the line connecting the 
floor of the auditory canals to the scalp over the bregma. The method 
relied upon and which gives results somewhat higher than those ob- 
tained by the means of Gray's radiometer, is given briefly in the foot- 
note. 2 Regrettably both Chantre and Myers in their measurements 
on the Egyptians used other methods, and their results are not com- 
parable with those here recorded. 
1 Recherches anthropologiques dans 1'Afrique orientale : Egypte. 4, Lyon 
1904. 
2 The measurement is obtained by a spreading and a sliding compass. The 
branches of a suitable compos d'epaisseur are introduced well into the audi- 
tory meati and allowed to rest on their floor. The expansion of the instru- 
ment is noted, with the scale held over the bregma region ; the distance from 
the bregma region to the lower edge of the scale is measured by the rod of 
the compos glissicre, and a simple arithmetical process gives the biauricular 
line-bregma height. With practice the measurement becomes easy, rapid, and 
at least as reliable as the measure of the same height by any other method. 
With due care, particularly as to the temperature of the instrument, the 
branches of the compass in the ears cause but very little discomfort. The 
writer has used this method now for many years with satisfactory results, 
and after testing the Gray's radiometer, must prefer it to that instrument. 
