132 THE PRACTICAL PIGEON KEEPER. 



only partially controllable, but capable of giving pleasure ; and 

 observation tends to confirm this view of the case. If the poor 

 "■round Tumbler never tumbles voluntarily, and the house 

 Tumbler shows signs of fear and dread, it is no less true that 

 the real flying Tumbler shows every sign of eagerness and joy 

 at starting on those aerial flights whicli it also must know by 



KOStWINa OR MOTTLF. SADDLE. 



MUPF-LEGGED FLYING TUMBLERS. 



ex])erience give stimulus to the spasmodic action. The delight 

 of the one is as obvious as the dread of the other ; and while 

 the man of real humanity should hesitate to cultivate a form of 

 disease which in the house Tumbler evidently causes suffering 

 and fear, he need not hesitate to maintain those other forms 

 which, according to all the evidence accessible, afford sensations 

 of the most pleasurable character. 



The varieties of form and colour in flying Tumblers are 

 endless, and they are so crossed as seldom to breed true. 

 Mottles and Rosewings are occasionally bred by themselves ; 



