THE FIRST UNITED STATES WEATHER BUREAU

The first United States Weather Bureau was established in 1870. General Albert J. Myer was the first chief of the United States Weather Bureau.

It is estimated that we are 250,000 miles from the moon.

At high altitudes, the cover of a kettle must be weighted down in order to boil an egg hard. This is to enable the pressure of steam to allow temperature high enough for boiling. In other words, it would be impossible to boil an egg in an open vessel at a high altitude.

MEMORANDUM

Rain Tomorrow!

You do not like your ball game or picnic postponed just because of rain, do you? You want a bright day for that event. Then don’t guess what the weather will be on a certain day—know. Learn to use the

Gilbert Weather Bureau

to read weather indications from instruments set up by yourself—in your own home. This is an outfit you will like immensely. Made specially for your use and to provide you with a new kind of play.

The fun you get in making records of changes in temperature, in humidity, and in making forecasts will surely be great. Your boy friends will listen to you with interest when you explain to them the cause of storms and how important it is to have a knowledge of climatic disturbances. The outfits contain all the necessary equipment and a big book on weather, telling you how to know when it’s going to storm and many other interesting things. Your dealer will show you the Gilbert Weather Bureau Sets. If he hasn’t them, write

THE A. C. GILBERT COMPANY

514 Blatchley Avenue New Haven, Conn.

In Canada: THE A. C. GILBERT-MENZIES CO., Limited, Toronto, Ont.

In England: THE A. C. GILBERT CO., 125 High Holborn, London W.C. 1

WHAT IS SOUND?

Do you know that hearing is just feeling with the ear? That in reality, the thing we call sound, which we think of as a noise or as a musical note, is just an impression on the brain? Very few boys know this, and if you would like to be one of the few that do, you surely want an outfit of

Gilbert Sound Experiments

With one of these outfits you can find out just what sound is—how it is produced—why some pianos sound better than others—why a violin produces a musical tone, and many other things, including a number of startling table rapping tricks with which you can astonish your friends. A big book of instructions tells you how to perform every experiment. Get one of these outfits today. The best toy dealer in your town should have it; if not, write us and we’ll tell you where you can get it.

THE A. C. GILBERT COMPANY

514 BLATCHLEY AVE. NEW HAVEN, CONN.

In Canada: The A. C. Gilbert-Menzies Co., Limited, Toronto

In England: The A. C. Gilbert Co., 125 High Holborn, London, W. C. 2

In the Dark!

A knock on the head with a hatchet or a stab with a knife doesn’t sound pleasant, but you’ll enjoy apparent treatment of this kind and so will your friends who watch your shadow show. Make your boy friend rise in the air—change him into a bird or a cat—create freakish images. It’s easy! And laugh—your audience sure will enjoy it because it’s new—nothing like it. An entertainment made for boys who want real fun. But that’s only a few of the many things you can do with

GILBERT LIGHT EXPERIMENTS

One of these outfits will help you to understand a great many facts about light. You can perform a number of experiments which explain the laws of light. Learn about the movie machine, the telescope and other optical instruments. There’s a big book on Light with each set, it’s a handy size, just right to put in your pocket.

From this book and your set you’ll get a knowledge of light that will be helpful to you always. It’s great fun too, the kind you like. The outfit is complete with prisms, mirrors and all the apparatus you’ll need to perform the experiments.

Ask your dealer to show you this new Gilbert toy.

If he hasn’t it write

THE A. C. GILBERT COMPANY

514 Blatchley Ave., New Haven, Conn.

In Canada—The A. C. Gilbert-Menzies Co., Limited, Toronto, Ont.

In England—The A. C. Gilbert Co., 125 High Holborn, London, W. C. 1

The Most Helpful Book for Boys Ever Published

Think of it! “Football Strategy,” by Walter Camp—“How to Pole Vault,” by Former World’s Champion, A. C. Gilbert—“Flying,” by Eddie Rickenbacker, and “Athletic Training,” by the famous Yale trainer, Johnny Mack. Chapters about signalling, wireless, wonderful heat, sound and light experiments, how to build a real weather bureau station of your own, chemistry for boys, electrical, hydraulic and pneumatic engineering and surveying, practical carpentry—all in one finely illustrated book. It’s yours for a quarter and worth dollars to you.

The Greatest

Book for Boys

in Years

Buy it from your dealer, or send us 25c today. You’ll never be sorry

The A. C. Gilbert Company

514 Blatchley Avenue

New Haven : Conn.

TRANSCRIBER’S NOTES

  1. P. [67], changed “it means that there is one one-hundredth of an inch of rain” to “it means that there is one one-tenth of an inch of rain”. [Makes the math consistent with the rest of the section.]
  2. P. [68], changed “by one hundred for actual rainfall” to “by ten for actual rainfall”. [Makes the math consistent with the rest of the section.]
  3. Silently corrected obvious typographical errors and variations in spelling.
  4. Retained archaic, non-standard, and uncertain spellings as printed.