Sheet 6.
The Skull of Canis.*--
1. Dorsal. 2. Ventral. 3. Right Lateral Aspect. 4. Section a little to the
left of the nasal septum. 5. Lower jaw (smaller) 6. Hyoid apparatus.

a.n., anterior nares.
a.s., ali-sphenoid.
b.h., body of the hyoid.
b.o., basi-occipital.
b.sp., basi-sphenoid.
c., condyle of the skull.
{c.1, c.4, canines.}
c.f., condylar foramen (for XII.).
c.h., cerato-hyal.
E.f., Eustachian foramen.
e.h., epihal.
-e.n., or a.n., the anterior nares.-
e.o., exoccipital.
eth., ethmoid.
e.t., ethmo-turbinal.
f., frontal.
f.l.a., foramen lacerum anterius.
f.l.m., foramen lacerum medium.
f.l.p., foramen lacerum posterius (for IX., X., XI.).
F.M., or f.m., foramen magnum.
f.o., foramen ovale.
f.r., foramen rotundum.
{i., incisors.}
ju., jugal.
m., molars.
m.t., maxillo-turbinal.
mx., maxilla.
na., nasal.
n.t., nasal turbinal.
o.f., optic foramen.
o.s., orbito-sphenoid.
p., or pal., palatine.
pa., parietal.
p.m., pre-maxilla.
p.m.1, p.m.4, premolars.
p.n., posterior nares.
p.sp., pre-sphenoid.
pt., pterygoid.
s.h., stylo-hyal.
s.m.f., stylo-mastoid foramen (for VII.).
s.o., supra-occipital.
sq., squamosal.
s.t., sectorial tooth.
t.h. thyro-hyal.
vo., -black line indicating position of- vomer.
z.p., zygomatic process of squamosal.

Sheet 7.

Figure 1. Striated muscle fibre (of the Rabbit), ruptured to show sarcolemma.
e.p., its end plate.
K.m., membrane of Krause.
n., nucleus.
nv., nerve.
sc., sarcolemma.
s.e., sarcous elements.
Figure 2. Cardiac muscle.
Figure 3. Unstriated muscle fibres.
Figure 4. Diagram of the Skin.
b.v., blood vessel.
d., areolar tissue of the dermis (mesoblastic).
s.c., stratum corneum, and s.m., stratum mucosum of the
epidermis.
s.g., sweat gland.
t.c., tactile corpuscle.
Figure 5. To illustrate Kidney structure.--
a.b.v., and e.b.v., afferent and efferent blood-vessels, of which the
latter go to break up upon the tubli.
B.c., one of Bowman's capsules of the cortex;
ur.t., the uriniferous tubule running from it into the medulla, where
it loops and branches; around it branches a blood-vessel, of which the
latter go to break up upon the tubuli.
c., cortex.
g., glomerulus, a knot of blood-vessels in the capsule.
m., medulla.
p., pelvis.
ur., ureter.
The water of the urine is probably filtered off in the capsule, the urea
and other salts secreted by the tubuli.
{No Figure 6.}
Figure 7. The Auditory structures of the Rabbit (diagram). See text,
[Section 115].
Figure 8. The Eye (diagram). See text, [Section 111].
Figure 9. The Retina (diagram). See text, [Section 112].