Manchester Mciiioirs, Vol. liii. (1909), No. 15- 9 



I may add that great caution is necessary in using 

 the data derived from the exact experiments made on 

 the vclocit}' of Pigeons, Partridges, and Pheasants {cf. 

 Newton, i.e., p. 566), and other estimates derived from the 

 performances of Homing J^igeons. Such birds are non- 

 migratory, and obviously handicapped in long journeys. 

 The Pigeon {Coliiiiiba livia) is not a good long-distance 

 traveller. A study of the facts and figures of pigeon 

 flying will prove this. 



In conclusion, I must express my indebtedness to 

 Mr. T. A. Coward. Without his help and encouragement 

 this paper could never have been written. 



