At last the collision came. The long runners, curiously flat from the air, pushed their way ahead. The salt seemed no more to them than bare ground, concrete, vegetation, or any of the hundred obstacles they had traveled. Unstutteringly the vinelike stolons went forward. A foot, two, six, ten. No recoil, no hesitation, no recognition they were traversing a wall erected against them.

Behind these first outposts, the higher growth came on, and still farther off the great bulk itself reared skyward, blotting out the horizon behind, threatening, inexhaustible. It seemed to prod its precursors, to demand hungrily ever more and more room to expand.

But the creeping of the runners over the first few feet of salt dwindled to a stop. This caused experienced observers like myself no elation; we had seen it happen many times before at the encountering of any novel obstacle, and its only effect had been to make the weed change its tactics in order to overcome the obstruction, as it did now. A second rank moved forward on top of the halted first, a third upon the second and so on till a living wall frowned down upon the salt, throwing its shadow across it for hundreds of ominous yards. It towered erect and then, repeating the tactic invariably successful, it toppled forward to create a bridgehead from which to launch new assaults.

The next day new stolons emerged from the mass, but now for the first time excitement seized us up in our bobbing post of observation. Not only were the new runners visibly shorter in length but they crept forward more slowly, haltingly, as though hurt. This impression was generally discredited, people were surfeited with optimism; they felt our reports were wishful thinking. Their pessimism seemed to be confirmed when the weed repeated its action of the day before, falling ahead of itself upon the salt; and few took stock in our excited announcements that the grass had covered only half the previous distance.

Again the probing fingers poked out, again the reserves piled up, again the mass fell. But it fell far short of a normal leap. There could no longer be any doubt about it; the advance had been slowed, almost stopped. The salt was working.

Everywhere along the entire band the story was the same. The grass rushed confidently in, bit off great chunks, then smaller, then smaller, until its movement ceased entirely. That part which embedded itself in the salt lost the dazzling green color so characteristic and turned piebald, from dirty gray through brown and yellow, an appearance so familiar in its normal counterpart on lawns and vacant lots.

The encircled area filled up and choked with the balked weed. Time after time it essayed the deadly band, only to be thwarted. The glistening fortification, hardly battered, stood triumphant, imprisoning the invader within. Commentators in trembling voices broke the joyful news over every receivingset and even the stodgiest newspapers brought out their blackest type to announce GRASS STOPPED!

33. The President of the United States, as befitted a farmer knowing something of grasses on his own account, issued a proclamation of thanksgiving for the end of the peril which had beset the country. The stockmarket recovered from funereal depths and jumped upward. In all the great cities hysterical rapture so heated the blood of the people that all restraints withered. In frantic joy women were raped in the streets, dozens of banks were looted, thousands of plateglasswindows were smashed while millions of celebrants wept tears of 86 proof ecstasy. Torn tickertapes made Broadway impassable and the smallest whistlestops spontaneously revived the old custom of uprooting outhouses and perching them on the church steeple.

I had my own particular reason to rejoice coincident with the stoppage of the grass. It was so unreal, so dreamlike, that for many days I had trouble convincing myself of its actuality. It began with a series of agitated telephone messages from a firm of stockbrokers asking for my immediate presence, which because of my assignments, failed to reach me for some time. So engrossed was I in the events surrounding the victory over the grass I could not conceive why any broker would want to see me and so put off my visit several times, till the urgency of the calls began to pique my curiosity.

The man who greeted me was runcible, with little strands of sickly hair twisted mopwise over his bald head. His striped suit was rumpled, the collar of his shirt was wrinkled, and dots of perspiration stood out on his upperlip and forehead. "Mr Weener?" he asked. "Oh, thank God, thank God."