Head of a bird, ce, cere; n, nostril; u, upper inaudible; t, tomia; 
d, tooth; e, culmen; p, tips of mandibles; i, under mandible; igo, gonys; 
g, gape. 
Topography of the Dove. M, alula; B, belly; Bk. back; Br, breast; 
C, crown; E, ear; iT", forehead; L, lore; Gc, greater coverts; Lc, lesser 
coverts: Jkfc, middle coverts; iV, r.ape; O, occiput; P, primaries; 6\ second- 
aries; i?, rump; <Sr, scutellate and reticulate tarsus; T. tail; Ta, tertiaries; 
Tc, tail-coverts; T/i, throat. (To face page 200.) 
