In consequence of this peculiarity, climatic or orographic changes in Europe tend to drive animals and plants into a cul de sac, from which there is no escape; but in America similar climatic waves merely cause the species alternately to retreat and advance.
The puddle wall is crossed by a pedestal of concrete carry- - 3 ing the brick discharge cul v ert.
It lies several miles off the road, now abandoned by wheeled traffic, between Changra and Amasia in a picturesque cul de sac amongst wooded hills, at the foot of a limestone rock crowned by the ruins of an ancient fortress now filled with houses (photograph in Anderson, Studia Pontica, p. 4).
The stomach is formed upon much the same principle as that of the horse or rhinoceros, but is more elongated transversely and divided by a constriction into two cavities - a large left cul de sac, lined by a very dense white epithelium, and a right pyloric cavity, with a thick, soft, vascular lining.
The stomach of the horse is simple in its external form, with a largely developed right cul de sac, and is a good deal curved on itself, so that the cardiac and pyloric orifices are brought near together.