"They seem so," said he, smiling, but still in earnest, "to your rustic and untaught mind, and to most others, because they haven't been studied. The comet, likewise, doesn't seem very stable or dependable; but to the eye of the astronomer its orbit is plain, and the time of its return engagement pretty certain. It's the same with seventeen-year locusts--and booms; their visits are so far apart that the masses forget their birthmarks and the W's on their backs. But if you'll follow their appearances from place to place, as I've done, putting up my ante right along for the privilege, you'll become an accomplished boomist; and from the first gentle stirrings of boom-sprouts in the soil, so to speak, you can forecast their growth, maturity, and collapse." "I must be permitted to doubt it," said I. "It's easy, my son," he resumed, "dead easy, and it's psychology on the hugest scale; and among the results of its study is constant improvement of the mind, going on coincidentally with the preparation of the way to the ownership of steam-yachts and racing-stables, or any other similar trifles you hanker for." "Great brain, Jim! Massive intellect!" said I, laughing at the fantastic absurdity of his assertion. "Why, such knowledge as you possess is better than straight tips on all the races ever to be run. It's better than our tropical island and Spanish galleons. You get richer, and you don't have to look out for men-of-war. Do I hold my job as Grand Vizier?" "You hold any job you'll take: I'll make out the appointment with the position and salary blank, and you can fill it up. And if you get dissatisfied with that, the old grand hailing-sign of distress will catch the speaker's eye, any old time. But, I tell you, Al, in all seriousness, I'm right about this boom business. They're all alike, and they all have the same history. With the conditions right, one can be started anywhere in a growing country. I've had my ear to the ground for a while back, and I've heard things. I'm sure I detect some of the premonitory symptoms: money piling up in the financial centers; property away down, but strengthening, in the newer regions; and, lately, a little tendency to take chances in investments, forgetting the scorching of ten or twelve years ago. A new generation of suckers is gettin' ready to bite. Look into this thing, Al, and don't be a chump." "The same old Jim," said I; "you were manipulating a corner in tobacco-tags while I was learning my letters." "Do you ever forget anything?" he inquired. "I have about forgotten that myself. How was that tobacco-tag business, Al?" Then with the painstaking circumstantiality of two old schoolmates luxuriating in memories, we talked over the tobacco-tag craze which swept through our school one winter. Everything in life takes place in school, and the "tobacco-tag craze" has quite often recurred to me as showing boys acting just as men act, and Jimmie Elkins as the born stormy petrel of financial seas.