312 



I5KAX. 



general contours of the liead, and the}' can be ea^5ily taken. A.s the lead 

 fuse wire is convenient for transportation, the method should be utilized 

 by careful investigators. I have devised a head machine which will he 

 perfected shortly, and with it exact outlines can be made in any direc- 

 tion over any part of the head and face. A description of the head 

 machine, with photographs, is soon to be published. 



IT. AMPLIFIED SCHEME l-Olt IIEUEDITY. 



The relative number of each type is given in the following table of 

 percentages : 



Relative number of adult male individuals of the various types in the different 



groups. 



Type. 



Prim- 

 itive. 



Aus- 

 traloid. 



Modl- 

 Ibe- fied 

 rian. j Prirai- 

 i tive. 



Al- 

 pine. 



B. B. B. 



Adri- 

 atic. 



Cro- 

 Mag- 

 non. 



Blend. 



Malecon Morgue 



Manila Students 



16.6 

 2.4 

 8.0 



10.4 

 8.0 

 9.0 



20.0 



10.4 

 6.6 



2.0 

 12.2 



2.0 

 8.0 



6.S 



.1.6 

 8.0 



2.0 



0.4 



6.3 



43.8 

 50.0 

 75.0 

 20.0 



Japanese 



50. 



inn 



















Malecon Morgue receives a larger proportion of the Primitive, Austra- 

 loid, Iberian and Cro-Magnon types than is found among the Igorots 

 or the Students, and there are fewer Modified Primitive, Alpine, Adriatic 

 and Blends than among the Students. 



The Japanese are too few to draw conclusions from, but it is of 

 interest to note the Australoid, Iberian, and Alpine types among them, 

 the large percentage of Iberians being especially significant. 



AVhen the above table is taken in connection with the scheme for 

 heredity herewith reproduced and amplified, one may calculate, somewhat 

 inexactly, the relative condition of amalgamation represented by each 

 group of measured individuals. The calculation is somewhat inexact 

 because of many unknown factors. If only two pure types are concerned, 

 the calculation would be almost exact in representation of the degree of 

 amalgamation of the two types by interbreeding ; but more than two types 

 have mingled in each group; the types have not been pure, i. e., perfect 

 blends, or homozygotes of Mendelian characters ; and the minglings, 

 re-minglings, crosses and re-crosses have been many and varied. In 

 spite of these disturbing factors, the degree of homogeneity of the popula- 

 tion, or the condition of amalgamation, or the extent of the blending 

 process, may be determined approximately. We will consider first the 

 readjusted scheme for heredity, then calculate the degree of mixture of 

 each group in relation to it. 



