Coordinating conjunctions join

1. coordinate clauses in a compound sentence, or
2. homogeneous parts in a simple sentence, or
3. homogeneous subordinate clauses in a complex sentence, or
4. independent

He had said he would stay quiet in the hall, but he simply couldn’t anymore; and crossing the gravel of the drive he lay down on the grass beyond. (Galsworthy)
He opened his eyes and stared quietly at the pure sky. (Wilson)
Hers was that common insularity of mind that makes human creatures believe that their color, creed, and politics are best and right and that other human creatures scattered over the world are less fortunately placed than they. (London)
Fabermacher wasted no time on a comedy of errors, and Haviland apologized for his mistake. But he was not as impressed as Erik had wanted him to be. (Wilson)

The meaning of conjunctions is closely connected with the relations they express. Thus, the classes of coordinating conjunctions according to their meaning correspond to different types of compound sentences. There are four different kinds of coordinating conjunctions.

and, nor, as well as, both … and, not only … but (also)f neither… nor. Copulative conjunctions chiefly denote that one statement or fact is simply added to another (nor and neither express that relation in the negative sense).

There was a scent of honey from the lime trees in flower, and in the sky the blue was beautiful, with a few white clouds. (Galsworthy)

His whole face was colorless rock; his eye was both spark and flint. (Ch. Bronte)

I do not know what they knew of the things happening beyond the hill, nor do I know if the silent houses I passed on my way were sleeping securely… (Wells)

…but it made him indeed suspect that she could give as well as receive; and she gave him nothing. (Galsworthy)

…the newspapers discussed the play for a whole fortnight not only in the ordinary theatrical notices and criticisms, but in leading articles and letters. (Shaw)

He went on as a statue would: that is, he neither spoke nor moved. (Ch. Bronte)

or, either… or, or else, else.

Disjunctive conjunctions offer some choice between one statement and another.

The majority of the inhabitants had escaped, I suppose, by way of the Old Worning road… or they had hidden. (Wells)

…either his furlough was up, or he dreaded to meet any witnesses of his Waterloo flight. (Thackeray)

He was compelled to think this thought, or else there would not be any use to strive, and he would have lain down and died. (London)

“You go and fetch her down, Tom,” said Mr. Tulliver, rather sharply, his perspicacity or his fatherly fondness for Maggie making him suspect that the lad had been hard upon “the little un”, else she would never have left his side… (Eliot)

but, while, whereas. Adversative conjunctions show that one statement or fact is contrasted with or set against another.

Fabermacher nodded in agreement, but his eyes glittered with silent triumph and contempt for the victory. (Wilson)

His nerves had become blunted, numb, while his mind was filled with weird visions and delicious dreams. (London)

so, for. Causative-consecutive conjunctions denote consequence, result, or reason. By these conjunctions one statement or fact is inferred or proved from another.

He had gone some miles away, and was not expected home until late at night; so the landlady dispatched the same messenger in all haste for Mr. Pecksniff. (Dickens)

His eyes must have had in them something of George Forsyte’s sardonic look; for her gloved hand crisped the folds of her frock, her eyebrows rose, her face went stony. (Galsworthy)

The conjunction for is a border-line case between a coordinating and a subordinating conjunction. When expressing cause, it approaches in its meaning the subordinating conjunctions as, because:

There was moreover time to spare, for Fleur was to meet him at the Gallery at four o’clock, and it was yet half past two. (Galsworthy)

Coordinating conjunctions can be used both in compound and in simple sentences; the coordinating copulative conjunctions both… and, as well as are used only in simple sentences.

Then he shrugged in impatience and said frankly, “I don’t know what came over me.” “You know as well as I do and that’s why we’re going away,” Savina insisted steadily. (Wilson)

The use of the copulative conjunction and in simple sentences as well as in compound sentences is widely spread.

But as he did so, unexpectedly he paused, and raised his head. (Cronln)

The coordinating conjunctions neither… nor, or, either… or are more widely used in simple sentences than in complex sentences.

There was nothing remarkable about the size of the eyes. They were neither large nor small… (London)

…in order to make a man or a boy covet a thing, it is only necessary to make the thing difficult to attain. (Twain)

…there was a slight smile on his lips that could have been either amusement or shy self-deprecation. (Wilson)

Some  of the coordinating conjunctions are polysemantic. Thus, the coordinating conjunction and may indicate different relations:

…there stood a white house within a walled garden, and in the pantry of this we found a store of food. (Wells) (COPULATIVE)

You are nineteen, Jon, and I am seventy-two. How are we to understand each other in a matter like this, eh? (Galsworthy) (ADVERSATIVE)

When he read those books something happened to him, and he went out of doors again in passionate quest of a river. (Galsworthy) (CONSECUTIVE)

The conjunction or may have a disjunctive and an adversative meaning. Happily it (a hackney-coach) brought them to the place where Jonas dwelt or the young ladies might have rather missed the point and cream of the jest. (Dickens) (ADVERSATIVE)

After that one would see, or more probably one would not. (Galsworthy)(DISJUNCTIVE)

The causative-consecutive conjunction for may have a causative or a consecutive meaning:

He would have to be more careful than man had ever been, for the least thing would give it away and make her as wretched as himself almost. (Galsworthy) (CAUSATIVE)

From the warmth of her embrace, he probably divined that he had let the cat out of the bag, for he rode off at once on irony. (Galsworthy) (CONSECUTIVE)