T. mod. Slip. = Tccti'icca mediae superioros. 



T. med. iiil'. = Tectriccs media; inforiores. 



Cyphers, symbols, and other abbreviations similar to those used in Table IV. 



Fig. 1. Metaoarpo-digital portion of right-side wing, showing the moult of medians I. and II., and the first 

 to appear of the proximal seetion. Also median VII., the first covert of the distal section. 

 No inferior medians in moult at this stage. 

 Fig. 2. Metacarpo-digital portion of right-side wing, showing the more advanced condition of four medians 

 belonging to the proximal section in moult, and two, medians V LL. and VIII., oa distal section. 

 Inferior medians I., II., and III. in moult also at this stage. 

 Fig. '6. Metacarpo-digital portion of right-side wing, showing dorsal median. V. of proximal section as the 

 next in turn, shed off, preparatory for its replacement by new feather. 



All the coverts of this series belonging to the outer section are replaced, also the whole series of 

 the ventral or inferior medians. 

 Fig. 4. Metacarpo-digital portion of right-side wing, showing the renewal of the dorsal medians in regular 

 sequence of their ordinal numbers, irrespective of the two sections, and a typical instance of the 

 perennial moult of a first season's bird. 

 Fig. 5. Metacarpo-digital portion of left- and right-side wing. 



In this the sub-serial renewal for the two sections may be seen ; both for their chronicism 

 between the dorsal and the ventral series of medians, as it takes place in a younger individual. 

 Fig. 6. Left- and right-side metacarpo-digital portions of the wing, also showing the chronological renewal of 



these series in the case of the fully adult individual. 

 Fig. 7. Cubital portion of the right-side wing. 



Principally shows the mode of renewal for the inferior medians in the very young bird in their 

 consecutive order for the whole series towards the wrist-joint from X.-I. 

 Fig. 8. Cubital portion of right-side wing, by specimen showing the typical condition of the moult of the 

 dorsal medians in advance of the remiges. 



Also showing first signs of Group-moulting for the inferior row, in which coverts I. and II. 

 belonging to Group II. moult in opposite or inward direction. 

 Fig. 9. Cubital portion of right-side wing, showing more advanced condition of previous diagram by 4 inferior 

 medians being in progressive stages of growth, also in inward direction of moult ; while those of 

 group I., or medians X., IX., & VIII., are as yet adhering to the conditions of the moult of the 

 fledgling bird, i. e. by moulting in an outward direction. 

 Fig. 10. Cubital portion of the left wing. 



This is an example of the final phase in the replacement of the inferior median coverts, and shows 

 the ultimate grouping-arrangement with directions of moult — inwards for Groups I. & II., outwards 

 for the middle or Group III. 



