the liver, and breaking up between the lobuli
(inter-lobular).

Figure X.b. A diagram of the appearance of an injected liver lobule as
seen in section under the microscope.

{Illustration: Diagram Sheet 3.}

Sheet 4

Histological Diagrams, 2.

Figure XI. A blood capillary. White corpuscles are migrating through
the walls into the tissues (compare Section 66).

Figure XII. Hyaline cartilage (Section 64).

Figure XIII.
c.c., connective tissue corpuscle.
w.i.f., white inelastic fibres.
y.e.f., yellow elastic fibres.

Figure XIV. Botryoidal tissue (Section 66).

Figure XV. Development of a fat drop.--
f.d., fat drop, in a connective tissue corpuscle; c.c., in the formation of
adipose tissue (Section 67).

Figure XVI. Diagrammic cross section of a long bone.--
b.c., bone corpuscle in a lacuna.
H.v., Haversian vessel (in the Haversian canal) surrounded by
concentric lamellae of bone, c.l., and together with these and zones
of bone corpuscles, called a Haversian system.
i.l., inner lamellae.
m.c., medullary canal full of yellow marrow.
o.l., outer lamellae.
p.o., periosteum.

Figure XVII. To illustrate bone development (Section 71).

Figure XVIII. Dentition of rabbit, incisors 2/1, canine 0/0, premolar 3/2,
molar 3/3.

{Illustration: Diagram Sheet 4.}

Sheet 5.

Diagram of the Rabbit's Bones.
To be compared with the real things.

D and D' show the fore and hind limbs, to illustrate their homology.
D is in the embryonic position. The radius and tibia are, at an early
stage in development, on the anterior edge of their respective limbs;
the ulna and fibula, posterior; the former are spoken of as preaxial in
position, the latter as postaxial. But in the adult the humerus is
twisted so that the proximal end of the radius lies at the outer side of
the elbow, whence it crosses the ulna, so that its distal end is
inside, while the femur is also twisted round, so that the entire tibia
is internal.

Figures 1 and 2. -Limbs.--
a.c., acetabulum.
acr., acromion.
as., astragulus.
c., carpus.
ca., calcaneum.
co., coracoid.
[coty., cotyloid bone.]
fb., fibula.
fe., femur.
g., glenoid cavity (for head of humerus).
hd., head of femur.
hum., humerus.
i., ilium.
is., ischium.
m.c., meta-carpals.
na., navicular.
o., olecranon process of ulna.
o.f., olfactory fossa.
pb., pubis.
r., radius.
u., ulna.

Figure 3. -Sternum.--
Mb., manubrium.
r1., r2., and etc., sternal ribs.
st., sternebr