XXIV. ADDENDA ET CORRIGENDA. 



wherever else in this work Taylor-bird may be found ; Tailor- 

 bird being the usual and accredited spelling. — 32, line 7, for 

 voluminious read voluminous. — 36, col. 2, line 8, for Gallinoula 

 read Gallinula. — 37, line 11 from the bottom, for ch rysaetos read 

 chrysa'etos. 



lu pages 41 and 42, the Circular Diagrams explanatory of (he 

 Quinary Arrangement ought to have been placed in a circular 

 form instead of that in which they now stand ; but the page 

 is altogether too small to permit a proper display of this system. 



It should have been mentioned in page 48, that there is 

 another disease of birds called also pip: it consists in a thick 

 white skin or film that grows under the tip of the tongue; and 

 is said to arise from want of water, or di inking that which is 

 impure, or by eating improper food. It is cured by simply 

 pulling off the film with the fingers and rubbing the tongue with 

 salt. Hawks are said to be peculiarly liable to this disease. 



In page 49, it is stated that "the organ of smell is said, in 

 the Gannet, to be wanting." This is, -however, not correct; 

 there is probably no deficiency in the smell of that bird; but, 

 from the peculiar structure of its tongue, the taste is very pro- 

 bably incomplete. 



Page 52, line 15 from the bottom, after also add to. — 56, 

 line penult., for appears, read appear. — 58, line 12, for Virginia' 

 nus read Virginiana. 



Page 59. In addition to the paragraph concerning the change 

 of plumage in the female bird, it may be stated that a paper by 

 Mr. Yarrel was read before the Royal Society in May last, and 

 will appear in the next publication of the Philosophical Trans- 

 actions, in which it is clearly shewn, by numerous facts, that the 

 alteration in plumage does not arise from age, but from disease 

 of the sexual organs ; nay, that not only may the female be made to 

 produce feathers and other appearances like the male by an arti- 

 ficial abstraction of merely a portion of the oviduct, so that the con- 

 tinuity of the canal may be destroyed, but that the male, as in the 

 capon, becomes also greatly altered ira manners and plumage by 



