36. What is at once the floor of the chest and the roof of the abdomen?
37. What would you do in a case of apparent death by drowning, or by coal gas? (See p. 264.)
38. What would you do in a case of croup, while the doctor was coming? (See p. 260.)
39. How would you treat a severe burn? (See p. 257.)
40. Describe the various ways in which the water in a well is liable to become unwholesome.
FIG. 34.
[Illustration]
V.
THE CIRCULATION.
"No rest this throbbing slave may ask,
Forever quivering o'er his task,
While far and wide a crimson jet
Leaps forth to fill the woven net,
Which in unnumber'd crossing tides
The flood of burning life divides,
Then, kindling each decaying part,
Creeps back to find the throbbing heart."