the rhachis described on p. 169. 
ON THE MORPHOLOGY ETC. OF THE PALZOGNATHA AND NEOGNATHA, 
“ig. 14. A remex of a nestling Casuarius australis, dorsal aspect, before the loss of 
Fig. 14a. Ventral aspect of fig. 14, to show the peculiar rhachis. 
Cassowary described p. 165. 
ig. 14 b. Section of the rhachis of figs. 14-14 a (p. 165). 
g. 15. A remex of Apteryx mantelli (p. 166), for comparison with that of the young 
ADDITIONAL LETTERS. 
a, =aftershatt. 
a.int.1-3 =anterior intermediate air-sacs 1-3. 
a.s.=ala spuria. 
ap.=aponeurosis. 
c.=calamus. 
c.c,=carpal covert. 
ch.=choane, 
cl.=claw. 
c.p.m.=costo-pulmonary muscle. 
c.r.= carpal remex. 
c.r.=cubital remiges. 
*=hypothetical carpal covert. 
“die Bs »  remex, 
e.=eye-spots. 
ect, =ecto-bronchia. 
ent. =ento-bronchia. 
cu.=eustachian aperture. 
f.=filum. 
h.=heart. 
k.=kidney. 
mb. =meso-bronchium. 
m.d.7r,=metacarpo-digital remiges, 
o.=ostium posterius. 
obl.sep.=oblique septa. 
o.ent. 3=ostia of ento-bronchium 3. 
o.mb, 1-2=ostia of outer and inferior lateral 
branches (1-2) of meso-bronehium. 
o.sub.=ostia leading into sub-bronchial sac. 
ED eCrSs— ys as »»  pre-bronchial sae. 
p.6.=pre-bronchial air-sac. 
p.int.= posterior intermediate air-sac. 
p.abd.=posterior abdominal air-sac. 
p.a.=pulmonary artery. 
para.b.=parabronchia. 
p.v.= pulmonary vein. 
rd.=radius, 
rh,=rhachis. 
rh.""=rhachis of aftershaft. 
7.m,=Yramus. 
r.r.=ribbon-shaped prolongations of rami. 
r.g.=rima glottidis. 
t.=tongue. 
t.f.=terminal filaments of the rami. 
t.mj.=tectrices majores. 
Land s— sins mediz, 
tn. — he minores. 
Eons; marginales. 
3~==passage from ento-bronchium 1 to 
vestibule. 
4.=— =traverses entire length ento- 
bronchium 1 to vestibule. 
5 => =passes from ento-bronchium 1 to 
vestibule. 
6=»=traverses whole length ento- 
bronchium 4. 
traverse lateral meso-bronchia into 
anterior inter- 
and _ posterior 
mediate air-sacs. 
