143 



is a wonderful structure of moss, wool, lichens, etc., 

 the inside being lined luxuriously with feathers, and 

 the outside imitating so closely the bark of the tree in 

 which it is built as to be exceedingly difficult of dis- 

 covery. Cocoons which have contained spiders' eggs, 

 aud chrysalides of various moths, are very largely 

 used by these tiny birds in the construction of their 

 wonderful nests; and immense numbers, two thousand 

 at least, have been counted as forming part of one of 

 these structures. The bird is locally known as the 

 " Bottle Tit" and " Featherpoke" — the first from the 

 shape of its nest, and the latter from the feather 

 lining of the same ; indeed none of the British Tits 

 have so many popular names as this. It is called 

 variously Long-tailed Titmouse, Bottle Tit, Poke- 

 feather, Poke-pudding, Huck-muck, Long-tailed Mag, 

 Long-tailed MufQin, Long Tom, Bottle Tom, Long Pod, 

 Long-tailed Pie, Mum Ruffin, etc. 

 (To be continued) . 



lDaaarte6 of ipopular IPatboloov. 



By R. H. CI.ARKK, M.A., M.B. Camb., M.R.C.vS. 



TS\ 



HENEVER I have taken up a book or paper 

 on birds I have been accustomed to turn 

 with interest to anything relating to their 

 diseases. The subject is fascinating to 

 those interested in pathology, not only for its own 

 special problems but also for its relation to subjects of 

 wide interest and general importance. Post mortem 

 examination of large animals is beset with many 

 difficulties, the work is arduous and often repulsive, 

 and the inevitable surroundings so disagreeable that 

 the advantage of having pathological problems bound 

 in the tin\^ and portable volume of a cage bird is 

 incalculable, and they assuredly deserve better treat- 



