240 GENEBAL ANALOGIES. 



to work ; and if we are compelled to stop short of the 

 whole, all the labour which we have taken is without 

 purpose and without profit; the subject remains 

 unknown, and the mind has not profited by the 

 exertion. 



We subjoin a figure of a bird which combines, in 

 some respects, the characters of a ground and an air 

 bird. It is a ground bird in its feeding, and an ex- 

 cellent runner ; but it takes the wing on its migrations. 

 It is a true gallinaceous bird, but it in part connects 

 the partridge with the migrant running birds. It is 

 itself now a migrant only in Britain, and by no means 

 a common one. 



