Ill the 3 divisions above the horizontal line, which is extended to the left, are entered the flight-feathers of 

 the Alar tract in the order of their moult from left to right. 



The metacarpo-digitul remiges or primaries for which the Roman figures I.-X. (XI.) have been substituted 

 are ])laced in the top jjoHion of the lower division and serve as the chronological scale by means of which the 

 moult of all the other tracts with their component rows ma}' be compared. 



'riie leUerinij in the ]K>rtion below this and immediatel}' over the line corresponds with the lettering for the 

 metacarpo-digitals in Tables I. & II. and Plates XXXVI.-XXXVIII. 



The Roman figures in the lower portion of the middle division show the synchronous replacement of 

 the cubital remiges or secondaries with any of the primaries in moult. They are lettered with dashes 

 thus : ', ", '", ill conformity with that of Tables I. & II. and in Plates XXXYI.-XXXVIII. 



Above these and in the uppermost division in ordinary cyphers are placed, according to their order of 

 replacement, the Penna< polUces, synchronous in position of their moult with those of the respective remiges. 



Knch slmded bar represents the moult of the respective row or rows of feathers, denominated as such to tlie 

 left of it. 



Its pointed end indicates the commencement of the moult of the row of feathers which it represents. 



The tapered portion of the hars from the tip to the angles which its sides form with the parallel divisions 

 of horizontal lines, shows the comparative amount o£ moult for that row. 



At the place where the shading fills up the parallel divisions, the moult of this row of feathers is completed. 



By means of the vertical division lines their respective stages of moult may be read off on the scale provided 

 for the moult of those remiges with which these stages coincide. 



A X against a unit of rows or a particular row signifies that this is a particular centre from which moult 

 proceeds. 



The rows which constitute a tract are bracketed together and are headed by the pterylographic name of 

 their respective position. 



The latter are bracketed together again according to their anatomical position on the bird, and denominated 

 as such at their head. 



The division at the foot of the Table is devoted to the synchronism in moult for the tail-feathers by means 

 of hars for the coverts, both dorsal and ventral, and by their respective numerals ibr main quills or rectrices. 



