disappears with the life of the individual. If that of the imme- 
diate parent—feebler no doubt, but closer—the variet survives 
which vary most in a desirable direction, man leads he : 
of variation as he leads a streamlet,—apparently at wh 
never against the force of gravitation,—to a long distance # 
domestic animal, drowns the uglier kittens of a litter, and ee 
only the handsomest or the best mousers to propagate. | 
more, by methodical selection, in recent times almost mary ai 
results have been produced in new breeds of cattle, ei." of 
poultry, and new varieties of fruit of greater and greater si@® 
excellence, id, would 
It is said that all domestic varieties if left to run wild, te 
revert to their aboriginal stocks. Probably they woul 
ever various races of one species were left to comming’ 
least the abnormal or exaggerated characteristics induced of a4 
feeding, or high cultivation, and prolonged close breeding blend 
wo 
result would be the same if the races ran wild each in 4 is the 
Tegion. Dr. Hooker doubts if there is a true pha in the 
