132 



THE PRACTICAL PRIEON KKKl'ER. 



only partially controllable, l>\it capable of giving pleasure, and 

 observation tends to eontirni tliis view of the case. If the poor 

 ground Tumbler never timibles ^-oluntarily, 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 starlini: on those aerial flights which it also must know by 



R03LWINU OK JIOTTLC. SADDLE. 



MUPF-LEGaED FLYING TUMBLERS. 



expei'ience give stimulus to the spt.smodic 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 svhich 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 vai'ieties of form and colour in flying Tundjlers are 

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

 Mottles and Eosewings are occasionally bred by themselves ; 



