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CALLS

1. To call a ship or unit, flag hoists are used. Each ship is assigned a call letter, which is made by means of these flags.

2. To call without the use of flag hoists, face the person or station called and make the attention sign. If this is not sufficiently definite, three or four letters abbreviating the person's or station's name will be used as a call. To answer a call, make the answering sign.

3. As an example for use in signal drill at a training station, John Doe wishes to send the following message to James Pederson: “ Come over to smoker to-night.”

4. John Doe faces James Pederson and makes attention sign. If James Pederson fails to get the call, John Doe will send the abbreviation ped until the call is answered by the answering sign.

5. As soon as John Doe's call is answered as above, the procedure for sending and receiving the signal is as follows:

6. Letters MSG in the text indicate that the dispatch is unofficial. John Doe (sending)

James Pederson (receiving). (a) Makes Front

Do. (6) Makes GR5 BT MSG.

Do. (c) Makes Front(d) Sends the 5GR message.

Do. (e) Makes front after each group

Do. (f) Makes AR at end of message-- Makes R to show that mes

sage is received and understood.

Do.

7. In case the message is not understood, the man receiving can ask to have any part of it repeated by using the repeat signal IMI followed by the letter indicated in the “ Procedure” table.

8. For the flag dot-and-dash alphabet, see Plates IV, V, and VI in front of book. These plates also give the spoken names of the flags.

66

CHAPTER 15

HOW TO SWIM

(Prepared by Mr. Graham Curry, physical director, Y. M. C. A.,

San Diego, Calif.)

THE REQUIREMENTS Fair health, normal mentality, coordination, and confidence are all that are required to learn how to swim. We will assume that the beginner already qualifies in the first two requirements, and that he will express his coordination qualifications in the rapidity with which he learns. Aside from these more or less natural requisites, and a thing which is primary to the beginner is confidence.

CONFIDENCE

The beginner must have confidence in the water to support him, and he must have confidence in himself to get his feet on terra firma any time he chooses. He must also have confidence in the instructor and his method. The instructor should do everything in his power to prevent the beginner from getting strangled. Be patient, reason with him, do not be too hasty. Remember this—the more you understand and sympathize with his fear of the water, the more you reason with him, the more confidence he will have in you and the more quickly he will learn. In order to make the instruction as brief and as clear_as possible, let us assume that we are in the water. I am the instructor, you are the beginner.

Fig. 66.-Towing

Come on over to the side of the_tank; hold your hands out in front, palms down. I am facing you and have my hands extended, palms up. Now place your hands upon mine. Do not grasp them, but just rest your weight slightly upon my hands. Presently I am going to walk backward through the water as fast as I can, drawing you forward through the water on your stomach. Do not be afraid. I promise you that I will not let you get any water on your head. Straighten and stiffen your body into a straight line; take a deep breath. Here we go—That's fine; now what held you up? “ The water.” That's right; the

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water held you up. You really couldn't go down and sit on the bottom unless you let all the air out of your lungs. We will repeat this about half a dozen times after which we will let you shove off by yourself.

Now I am about 10 feet from the side of the tank and I am facing you. Place your right foot against the side of the tank, take a deep breath, and shove off toward me. Straighten your body. I will catch you by the arms and raise you up. I promise I will not let you get strangled. Are you ready? Shove offThat's fine. I will stand back a little farther this time-Great!

Keep your arms and hands straight out in front of your head, hands with palms down, and pointing

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