You can't learn all the basic manual trades in your spare time in a limited number of years but you can acquire a jackleg but adequate knowledge of the more important ones, in the time we have left.

But how much time have we?

All we can do is estimate. How long will it be before other nations have the atomic bomb? Nobody knows - one estimate from the men who made it was "two to five years." Dr. Vannevar Bush spoke of "five to fifteen years" while another expert, equally distinguished, mentioned "five or ten years." Major General Leslie Groves, the atom general, thinks it will be a long time.

Let us settle on five years as a reasonable minimum working time. Of course, even if another nation, unfriendly to us, solved the production problems of atomic weapons in that length of time, there still might not be a war for a number of years, nor would there necessarily ever be one. However, since we don't know what world conditions will be like in five years, let's play it safe; let's try to be ready for it by 1950.

Four or five years is none too long to turn a specialized, soft, city dweller into a generalized, hardened pioneer. However, it is likely that you will find that you are enjoying it. It will be an interesting business and there is a deep satisfaction in learning how to do things with your own hands.

First get that Scout Manual. Look over that list of merit badges. Try to figure out what skills you are likely to need, what ones you now have, and what ones you need to study up on. The Manual will lead you in time to other books. Ernest Thompson Seton's Two Little Savages is full of ideas and suggestions.

Presently you will find that there are handbooks of various trades you have not time to master; books which contain information you could look up in an emergency if you have had the forethought to buy the book and hide it away in your out - of - town base. There are books which show how to build fireplaces, giving the exact dimensions of reflector, throat, ledge, and flue. You may not remember such details; being able to look them up may save you from a winter in a smoke - filled cabin. If there is any greater domestic curse than a smoking fireplace, I can't recall it, unless it be the common cold.

There are little handbooks which show, in colored pictures, the edible mushrooms and their inedible cousins. It is possible to live quite well on practically nothing but fungi, with comparatively little work; they exist in such abundance and variety.

You will need a medical reference book, selected with the advice of a wise and imaginative medical man. Tell him why you want it. Besides that, the best first - aid and nursing instruction you can get will not be too much. Before you are through with this subject you will find yourself selecting drugs, equipment, and supplies to be stored against the darkness, in your base as well as a lesser supply to go into the survival kit you keep in your automobile.

What goes into that survival kit, anyhow? You will have to decide; you won't take any present advice in any case. By the time you get to it you will think, quite correctly, that you are the best judge. But the contents of the survival kits supplied our aviators in this latest war will be very illuminating. The contents varied greatly, depending on climate and nature of mission - from pemmican to quinine, fish hooks to maps.

What to put in your cabin is still more difficult to state definitely. To start with, you might obtain a Sears - Roebuck or Montgomery - Ward catalog and go through it, item by item. Ask yourself "Do I have to have this?," then from the list that produces ask yourself "Could I make this item, or a substitute, in a pinch?"

If shoes wear out, it is possible to make moccasins - although shoes should be hoarded in preference to any other item of clothing. But you can't - unless you are Superman - make an ax. You will need an ax.

You will need certain drugs. Better be liberal here.

Salt is difficult to obtain, inland.

It is difficult to reject the idea of hoarding canned goods. A few hundred dollars worth, carefully selected, could supplement the diet of your family to the point of luxury for several years. It might save you from starvation, or the cannibalism that shamed the Donner Party, during your first winter of the Dark Ages, and it could certainly alleviate some of the sugar hunger you are sure to feel under most primitive conditions. But it is a very great risk to have canned goods. If you have them, you will be one of the hated rich if anybody finds out about them. We are assuming that there will be no government to protect you. To have canned goods - and have it known by anyone outside your own household - is to invite assassination. If you do not believe that a man will commit murder for one can of tomatoes, then you have never been hungry.

If you have canned goods, open them when the windows are shuttered and bury the cans. Resist the temptation to advertise your wealth by using the empty tins as receptacles.

Don't forget a can opener - two can openers.

You will have a rifle, high - powered and with telescopic sights, but you won't use it much. Cartridges are nearly irreplaceable. A deer or a man should be about the limit of the list of your targets ... a deer when you need meat; a man when hiding or running is not enough.

That brings us to another subject and the most interesting of all. We have not talked much about the enemy, have we? And yet he was there, from the start. It was his atom bombs which reduced you to living off the country and performing your own amputations and accouchements. If you have laid your plans carefully, you won't see much of him for quite a while; this is a very, very big country. Where you are hidden out there never were very many people at any time; the chances of occupation forces combing all of the valleys, canyons, and hills of our back country in less than several years is negligible. It is entirely conceivable that an enemy could conquer or destroy our country, as a state, in twenty minutes, with atom bomb and rocket. Yet, when his occupation forces move in, they will be almost lost in this great continent. He may not find you for years.

There is your chance. It has been proved time and again, by the Fighting French, the recalcitrant Irish, the deathless Poles, yes and by our own Apache and Yaqui Indians, that you cannot conquer a free man; you can only kill him.

After the immediate problems of the belly, comes the Underground!

You'll need your rifle. You will need knives. You will need dynamite and fuses. You will need to know how to turn them into grenades. You must learn how to harry the enemy in the dark, how to turn his conquest into a mockery, too expensive to exploit. Oh, it can be done, it can be done! Once he occupies, his temporary advantage of the surprise attack with the atom bomb is over, for once his troops are scattered among you, he cannot use the atom bomb.

Then is your day. Then is the time for the neighborhood cell, the mountain hideout, the blow in the night. Yes, and then is the time for the martyr to freedom, the men and women who die painfully, with sealed lips.

Can we then win our freedom back? There is no way of telling. History has some strange quirks. It was a conflict between England and France that gave us our freedom in the first place. A quarrel in enemy high places, a young hopeful feeling his oats and anxious to displace the original dictator, might give us unexpected opportunity, opportunity we could exploit if we were ready.

There are ways to study for that day, too. There are books, many of them, which you may read to learn how other people have done it. One such book is Tom Wintringham's New Ways of War. It is almost a blueprint of what to do to make an invader wish he had stayed at home. It is available in a 25 cent Penguin Infantry Journal edition. You can study up and become quite deadly, even though 4 - F, or fifty.