660 R. M. STRONG 
PLATE 2 
EXPLANATION OF FIGURES 
Figures 15 and 16 are X 13. All other figures X 1. 
9 Leptotilus crumeniferus, (African adjutant). Dorsal view to show olfac- 
tory lobes, olfactory nerves, and posterior portions of the nasal chambers. The 
ophthalmic branches of the trigeminus nerves are seen pulled slightly apart, and 
they enter the roof of the nasal chambers anteriorly. The main branches of the 
right olfactory nerve in the dorsal inner roof of the nasal chamber are shown as 
they appear insucha preparation. The corresponding area in the left nasal cham- 
ber has been opened. 
10 Phoenicopterus roseus, (European flamingo). Dorsal view showing olfac- 
tory lobes, olfactory nerves, posterior portions of the nasal chambers, and ophthal- 
mic branches of the trigeminus nerves. Contour lines for the eyes have been 
drawn. 
1@ Catharistes urubu, (black vulture). Dorsal view showing olfactory lobes 
and nerves, posterior portions of the nasal chambers, and trigeminus branches. 
The trigeminus nerves are seen ascending from the orbit and converging at some 
distance anterior to the junction of the olfactory nerves with the nasal chambers. 
Contour outlines for the eyes are sketched. 
12 Cireaétes gallicus, (serpent eagle). Dorsal view showing fused olfactory 
lobes, olfactory nerves, and posterior ends of the nasal chambers. The fused and 
lengthened condition of the olfactory lobes which has been shown here was not 
found in the other birds of prey which were examined. 
13. Chrysotis auripalliata, (golden-naped Amazon parrot.) Dorsal view of dis- 
sected head. The olfactory lobes ure seen to be fused with the diverging fore- 
brain lobes, and they are practically non-definable by the method of dissection 
alone. The olfactory nerves are seen to divergewidely. The right nasal chamber 
has been exposed to show the turbinals. The tissue composing the orbits has been 
removed, and the eyes are consequently not separated in the figure from the 
cerebrum and the olfactory nerves. 
14 Coecyges erythrophthalmus, (black-billed cuckoo). Dorsal view of olfac- 
tory lobes and nerves. 
15 Motacillaalba, (white wagtail). > 3. Dorsal viewshowing the very small 
and fused olfactory lobes merged with the tapering fore brain lobesso as to be unde- 
finable by the method of dissection only. 
16 Coccothraustes coccothraustes, (hawfinch). > 3. Dorsal view of portion 
of dissected head. The right nasal chamber has been partly exposed. The olfac- 
tory nerves are shown throughout most of their extent. Orbit tissue removed. 
17. Corvus corax, (raven). Dorsal view showing the minute olfactory lobes 
and the slender olfactory nerves. The posterior ends of the nasal chamber are 
included. 
