scattered up and down Europe. It would appear probable that that race has contributed largely 
to the London, if not to the whole English population, a conclusion which should serve to 
modify a good deal of historical and anthropological opinion. 
(4) The fourth memoir, a cooperative paper, deals with the colour inheritance of Greyhounds. 
The material consisted partly of schedules filled in by breeders, partly of data extracted from the 
Greyhound Stud-books. It was found quite impossible to neglect ancestral influence and no 
means of fitting the material into any Mendelian formula was apparent. The parental and 
grandparental correlations have sensibly the same intensity as for man and horse, and we may 
therefore reasonably suppose them to fit the geometrical law of decreasing intensity (Ancestral 
Laiv). The fraternal correlations for the data drawn from the stud-books agree well with the 
results for man and Basset Hound, but those drawn from the schedules are much higher, com- 
parable only with the fraternal correlations in the case of the thoroughbred horse. A number of 
special investigations were made to elucidate this difiFerence, but the only solution that can be 
oflFered seems to be that the coat colours entered on the schedules were observed at a very early 
stage, and that the litter at this stage is more uniform than later, possibly after the shedding of 
the first coat. The Greyhound may be a confirmed " heterozygote," but if so the memoir seems 
to show that any population of this character in man, horse, or dog obeys closely the ancestral law 
of decreasing correlation. 
(5) In the Miscellanea will be found an elementary proof of Sheppard's formulae for correcting 
raw moments, and also approximate formulae for passing from the ordinates of frequency curves 
to the adjacent areas or sub-frequencies. 
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