finest fibers; the striation of the fibers, or their markings,
consisting of alternate dim and bright cross bands. Note the arrangement
of the fibers in bundles, each thread running parallel with its
neighbor.

Experiment 25. _To examine the minute structure of involuntary
muscular fiber, a tendon, or a ligament._ Obtain a very small portion of
the muscular coat of a cow's or a pig's stomach. Put it to soak in a
solution of one dram of bichromate of potash in a pint of water. Take
out a morsel on the slip of glass, and tease as directed for the
voluntary muscle. Examine with a high power of the microscope and note:
(1) the isolated cells, long and spindle-shaped, that they are much
flattened; (2) the arrangement of the cells, or fibers, in sheets, or
layers, from the torn ends of which they project like palisades.

Experiment 26. Tease out a small portion of the tendon or ligament
in water, and examine with a glass of high power. Note the large fibers
in the ligament, which branch and interlace.

Experiment 27. With the head slightly bent forwards, grasp between
the fingers of the right hand the edge of the left
sterno-cleido-mastoid, just above the collar bone. Raise the head and
turn it from left to right, and the action of this important muscle is
readily seen and felt. In some persons it stands out in bold relief.

Experiment 28. The tendons which bound the space (popliteal) behind
the knee can be distinctly felt when the muscles which bend the knee are
in action. On the outer side note the tendons of the biceps of the leg,
running down to the head of the fibula. On the inside we feel three
tendons of important muscles on the back of the thigh which flex the leg