Adapted from "The Loon" by Henry David Thoreau in A Book of Natural History (1902, ed. David Starr Jordan)

As I was paddling along the north shore one very calm October afternoon, for such days especially they settle on to the lakes, like the milkweed down, having looked in vain over the pond for a loon, suddenly one, sailing out from the shore toward the middle a few rods in front of me, set up his wild laugh and betrayed himself. I pursued with a paddle and he dived, but when he came up I was nearer than before. He dived again but I miscalculated the direction he would take, and we were fifty rods apart when he came to the surface this time, for I had helped to widen the interval; and again he laughed long and loud, and with more reason than before.

He maneuvered so cunningly that I could not get within half a dozen rods of him. Each time when he came to the surface, turning his head this way and that, he coolly surveyed the water and the land, and apparently chose his course so that he might come up where there was the widest expanse of water and at the greatest distance from the boat. It was surprising how quickly he made up his mind and put his resolve into execution. He led me at once to the wildest part of the pond, and could not be driven from it. While he was thinking one thing in his brain, I was endeavoring to divine his thought in mine. It was a pretty game, played on the smooth surface of the pond, a man against a loon.

He was indeed a silly loon, I thought. I could commonly hear the plash of the water when he came up, and so also detected him. But after an hour he seemed as fresh as ever, dived as willingly and swam yet farther than at first. It was surprising to see how serenely he sailed off with unruffled breast when he came to the surface, doing all the work with his webbed feet beneath. His usual note was this demoniac laughter, yet somewhat like that of a waterfowl, but occasionally when he had balked me most successfully and come up a long way off, he uttered a long-drawn unearthly howl, probably more like that of a wolf than any bird, as when a beast puts his muzzle to the ground and deliberately howls. This was his looning—perhaps the wildest sound that is ever heard here, making the woods ring far and wide. I concluded that he laughed in derision of my efforts, confident of his own resources.

In the passage's final sentence, the underlined word “derision” most nearly means __________.

Adapted from "How to Make History Dates Stick" in What is Man? by Mark Twain (1914)

I will give you a valuable hint. When a man is making a speech and you are to follow him don't jot down notes to speak from, jot down PICTURES. It is awkward and embarrassing to have to keep referring to notes; and besides it breaks up your speech and makes it ragged and non-coherent; but you can tear up your pictures as soon as you have made them—they will stay fresh and strong in your memory in the order and sequence in which you scratched them down. And many will admire to see what a good memory you are furnished with, when perhaps your memory is not any better than mine.

Sixteen years ago when my children were little creatures the governess was trying to hammer some primer histories into their heads. Part of this fun--if you like to call it that--consisted in the memorizing of the accession dates of the thirty-seven personages who had ruled over England from the Conqueror down. These little people found it a bitter, hard contract. It was all dates, they all looked alike, and they wouldn't stick. Day after day of the summer vacation dribbled by, and still the kings held the fort; the children couldn't conquer any six of them.

With my lecture experience in mind I was aware that I could invent some way out of the trouble with pictures, but I hoped a way could be found which would let them romp in the open air while they learned the kings. I found it, and then they mastered all the monarchs in a day or two.

The idea was to make them SEE the reigns with their eyes; that would be a large help. We were at the farm then. From the house-porch the grounds sloped gradually down to the lower fence and rose on the right to the high ground where my small work-den stood. A carriage-road wound through the grounds and up the hill. I staked it out with the English monarchs, beginning with the Conqueror, and you could stand on the porch and clearly see every reign and its length, from the Conquest down to Victoria, then in the forty-sixth year of her reign—EIGHT HUNDRED AND SEVENTEEN YEARS of English history under your eye at once!

In context, the underlined and bolded word "non-coherent" most closely means __________.

Passage adapted from Life on the Mississippi by Mark Twain (1883)

The pilot-house was full of pilots, going down to "look at the river." What is called the "upper river" (the two hundred miles between St. Louis and Cairo, where the Ohio comes in) was low; and the Mississippi changes its channel so constantly that the pilots used to always find it necessary to run down to Cairo to take a fresh look, when their boats were to lie in port a week; that is, when the water was at a low stage. A deal of this "looking at the river" was done by poor fellows who seldom had a berth, and whose only hope of getting one lay in their being always freshly posted and therefore ready to drop into the shoes of some reputable pilot, for a single trip, on account of such pilot's sudden illness, or some other necessity. And a good many of them constantly ran up and down inspecting the river, not because they ever really hoped to got a berth, but because (they being guests of the boat) it was cheaper to "look at the river" than stay ashore and pay board. In time these fellows grew dainty in their tastes, and only infested boats that had an established reputation for setting good tables.

All visiting pilots were useful, for they were always ready and willing, winter or summer, night or day, to go out in the yawl and help buoy the channel or assist the boat's pilots in any way they could. They were likewise welcome because all pilots are tireless talkers, when gathered together, and as they talk only about the river they are always understood and are always interesting. Your true pilot cares nothing about anything on earth but the river, and his pride in his occupation surpasses the pride of kings.

We had a fine company of these river-inspectors along, this trip. There were eight or ten; and there was abundance of room for them in our great pilot-house. Two or three of them wore polished silk hats, elaborate shirt-fronts, diamond breastpins, kid gloves, and patent-leather boots. They were choice in their English, and bore themselves with a dignity proper to men of solid means and prodigious reputation as pilots. The others were more or less loosely clad, and wore upon their heads tall felt cones that were suggestive of the days of the Commonwealth.

I was a cipher in this august company, and felt subdued, not to say torpid. I was not even of sufficient consequence to assist at the wheel when it was necessary to put the tiller hard down in a hurry; the guest that stood nearest did that when occasion required--and this was pretty much all the time, because of the crookedness of the channel and the scant water. I stood in a corner; and the talk I listened to took the hope all out of me.

In the context of the passage "prodigious" (Line X) most nearly means __________________.