The plaintiff seeks to recover compensation for personal injuries received by reason of the alleged negligence of the defendant as his employer. It is assumed in favor of the plaintiff, but without so deciding, that he was an employee of the defendant. The evidence in its aspect most favorable to the plaintiff tended to show that he first began work on the job in question by digging a trench on land where the foundation of a building was to be dug. Two other men were cutting down a large tree *239seventy-five to one hundred feet high by digging and cutting its roots. Several times the plaintiff, who had himself cut trees and worked on jobs where trees were being cut, was advised to watch out when the tree was ready to fall. The tree was slanting by nature and no ropes were used to control its falling. After the plaintiff had been working about two and a half hours, and when the tree was starting to fall, the man in charge of the work called to everybody to look out. The plaintiff jumped out of the trench he was digging which was about two feet deep and ran in the direction in which the tree was falling. When he had gone about twenty or twenty-five feet the tree hit him causing injuries; the tree did not fall at the place where he was digging in the trench.

There was nothing to show that the defendant was insured under the workmen’s compensation act.

This evidence affords no basis for a finding of negligence on the part of the defendant or any other man on the job as the cause of the injuries to the plaintiff. All danger was entirely plain when the plaintiff began work. He was an experienced workman. He was repeatedly warned to look out for the tree. Every reasonable precaution for his safety was taken by those in charge of the job. He was not injured in the place where he was directed to work. No act was done by the defendant or his agents in violation of any duty or obligation owed to the plaintiff. Bernabeo v. Kaulback, 226 Mass. 128, 131. Walsh v. Boston & Maine Railroad, 284 Mass. 250. The seventh request for ruling was in these words: “In order that plaintiff may recover in an action of this nature, he must prove negligence on the part of the employer, his agent, servants or employees. If, therefore, the court finds that in this action plaintiff has failed to prove such negligence, plaintiff cannot prevail in this action.” It ought to have been granted by the trial judge. Beggelman v. Romanow), 288 Mass. 14. The order of the Appellate Division that judgment be entered for the defendant was right and is

Affirmed.