206 
that we are incapable of explaining how these things can be. 
We can only admire and adore. 
Fig. 2. Fig. 3. 
Fig. 4. 
Fig. 2. Wax cast of the left ventricle ( h ) and portion of the right ven- 
tricle (a) of the heart of a deer. Shows the spiral nature of the left ven- 
tricular cavity, — the spiral courses or tracks of the masculi papillares ( x , y), 
and how, between the masculi papillares, two spiral grooves (j, q ) are found 
(they are spiral ridges in the cast), which conduct the blood to the segments 
of the mitral valve in spiral waves. 
Fig. 3. Bones of the anterior extremity of the elephant. Shows the 
spiral arrangement of the bones of the fore leg. q, humerus ; x, q', radius and 
ulna ; o, bones of foot. 
Fig. 4. Bones of the wing of a bird. Shows their spiral arrangement. 
Compare figs. 2 and 3. The bones of the human arm resemble those of 
the fore-limb of the elephant and the wing of the bird, a, humerus. 
b, radius and ulna, c, bones of the hand.* 
Creation everywhere discloses to us Beauty. Harmony, 
qrace, and proportion are always present, introduced for 
their own sakes, or rather to show forth the glory, and to 
meet the Infinite Mind of the great Architect of all. 
Our grand old mediaeval builders seem to have entered into 
the spirit of the display of God’s glory in the visible world, 
and to have adopted in our cathedrals these two great prin- 
ciples of Stability and Beauty. We have stability where it is 
needed, and that secured, as well as by the masses of Stone- 
henge; but we have all the delightful variety in ornamentation, 
ever refreshing the eye with forms given to man for his 
admiration. In the vast and mysterious relics of the Pagan 
* These illustrations are from Pettigrew’s Physiology of (he Circulation 
in Plants, in the Lower Animals, and in Man, and are inserted here by kind 
permission. 
