"Come on! Come on!" yelled Bud to his cousins, as they saw Del Pinzo and his gang of Greasers spurring toward them.

Nort and Dick touched their horses lightly, and the spirited ponies sprang forward. Dick had a glimpse of the two professors, and one or two other men, standing by the derrick structure as though dazed at the sudden turn in affairs. Some of the helpers were endeavoring to quiet the harnessed cattle.

"Ride 'em down, boys! Ride 'em down!" yelled Mr. Merkel.

"You said it!" shouted Slim Degnan, and Babe added his voice to the din, the while starting one of the verses of his cowboys' song.

"Crack!"

That was a gun going off close to the ear of Dick. He leaned over slightly in his saddle, fearing he had been hit. But in another instant he realized that Bud had fired, with a pistol held so close to the eastern lad's ear as nearly to deafen him.

"Well, I got him, anyhow!" yelled Bud, and Dick saw a man who had been riding at Del Pinzo's side drop his gun and clasp his right hand in his left. "That's what I wanted to do—disarm him. No need to shoot to kill!" Bud went on.

Dick saw a Mexican riding straight at him, and the boy endeavored to bring his weapon to bear as Bud had done. But just as the boy rancher was going to pull the trigger something else happened. He felt himself flying over the head of his pony, and the next moment came heavily to the ground, while blackness closed his eyes. Dick was out of the fight.

The battle between the cowboys and the Greasers now waged hotly. Guns cracked on both sides and more than one saddle was emptied. This before the two forces actually came together. And come together they did, with the thud of horses and men meeting, as when two rival football elevens clash on the gridiron. Only this was more desperate.

Nort had a glimpse of Dick being unhorsed and left behind in a silent, huddled heap on the ground. A wave of sorrow, and then a wild feeling of revenge, swept through Nort's heart. He sent his pony ahead with a rush, endeavoring to wheel him to attack the man at whom Dick had been riding when unseated.