56 
MENDEL’S PRINCIPLES OE HEREDITY 
opinion will welcome measures likely to do more for the 
extinction of the criminal and degenerate than has been 
accomplished by ages of penal enactment.’ A word as to 
unfixable types : there are of course such which cannot be 
fixed at all, for the reason that their special character is not 
represented in the gametes, but is a special consequence of the 
meeting of dissimilar types. 
These extracts will illustrate the lines upon which modem 
thought is proceeding in the investigation of the extended 
application of Mendelian principles. 
As to our local conditions, we have indeed a rich field for 
research. I will indicate a few subjects which could be worked 
out by means of collective inquiry : — 
Cattle : 
Unimproved native breeds. 
Horn formation, shape, size, present, absent (polled). 
Colour of hair and skin. 
General shape and size. 
Milking qualities. 
Milk percentage of fats, size of fat globules. 
Improved cross breeds. 
Eastern crosses. 
Western crosses. 
Families to be traced through as many generations as 
possible, full details and photos to be obtained. 
In the first place, a series of typical photos and descriptions 
should be obtained of all the distinct types of native cattle 
from the coast to the boundaries of Uganda. 
I have reason to believe that a very remarkable local con- 
dition exists with reference to horn formation, but this requires 
careful confirmation. Shortly stated : — 
Kilimanjaro district, a polled breed. 
Wakamba, very short homed. 
Masai and Kikuyu, a medium horned race of cattle. 
Nandi and Sotik, medium horns but longer on average 
than last. 
