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"Small additional valves, as those placed near the umbones of the Genus Pholas among mollusks."-Whitney, 1902

Accessory Valve

"Small additional valves, as those placed near the umbones of the Genus Pholas among mollusks."-Whitney,…

This illustration shows a representation of the circulation of the blood, in its essential features. The arrows indicate the course of the blood. a, arteries; aur., auricle or receiving portion of the heart; d, digestive tract; c. d., capillaries of the digestive tract; c.r., capillaries of the respiratory organs; c.s., capillaries of the system; va., valves; ve, veins; vt, ventricle.

Blood Circulation

This illustration shows a representation of the circulation of the blood, in its essential features.…

"Septicidal Dehiscence. v, valves; d, dissepiments; c, axis. In botany, noting a mode of dehiscence in which the pericarp or fruit is resolved into its component carpels by splitting asunder through the dissepiments." -Whitney, 1911

Septicidal Dehiscence

"Septicidal Dehiscence. v, valves; d, dissepiments; c, axis. In botany, noting a mode of dehiscence…

End of Lacteal, showing wall and valves, greatly enlarged.

Lacteal

End of Lacteal, showing wall and valves, greatly enlarged.

The valves of a lymphatic trunk.

The Valves of a Lymphatic Trunk

The valves of a lymphatic trunk.

The saxhorn is a brass instrument with: a, mouthpiece; b, valves; c, keys; d, bell; e, crook.

Saxhorn

The saxhorn is a brass instrument with: a, mouthpiece; b, valves; c, keys; d, bell; e, crook.

Diagram to illustrate the mode of action of the valves of the veins. Labels: C, the capillary end, and H, the heart end of the vessel.

Action of Valves

Diagram to illustrate the mode of action of the valves of the veins. Labels: C, the capillary end, and…