Townsend, J.

(after stating the facts). The appellant (plaintiff) has filed seven assignments of error, which he discusses under two general heads, as follows: “First, the admissibility of evidence as raised by the -first and second assignments of error; and, second, should the cause have been submitted to the jury, as raised by the third, fourth, fifth, sixth, arid seventh assignments of error?” The first head discussed the question of allowing certain witnesses to testify. The second head was discussed under two propositions, as follows: “(1) Was it error for the court to decide, as a matter of law, that because appellant stood in the main slope while turning a room off from it, that the portion of the slope occupied by him was his working place, in the sense that he was required to inspect it and keep it safe from falling rock for his own protection? (2) Was there sufficient evidence as to whose duty it was to inspect and timber the main slope at the place where appellant was at work to submit the question to the jury?”

*408The question of allowing the witnesses referred to under the first head to testify was wholly within the discretion of the court, and is not reversible error.

The two propositions discussed under the second head involve the whole question of the right of plaintiff to recover. It is unquestioned that plaintiff was employed by defendant as a coal miner, and was ordered to turn a room off the slope. He drilled into the coal, and prepared his shots, which were fired by the shot firer. They were not satisfactory, and he drilled more holes, and they were likewise fired. The effect of these seems to have been to crack the coal in all directions. Several days after these shots were fired, plaintiff returned to work. He had taken out several hundred pounds of coal when a piece of rock fell. He jumped back into the slope, and another rock fell, striking him seriously injuring him. The rock fell by reason of taking out the coal that supported it, and would not have fallen if the coal had not been taken out. Was not this contributory negligence on the part- of plaintiff, and did he not assume the risk of the accidents which might happen when he undertook the service of turning off this room? What negligence was the defendant guilty of that could support a recovery in this case? It was unquestionably the duty of defendant to keep the slope in good condition, so that employes could pass and repassjjin safet}. But this was the place where the plaintiff was at work, and was it not plaintiff's duty to take care of his own working place, and to do such things as were necessary to keep it safe for his purposes?

The defendant has pleaded two defenses to this action— contributory negligence and assumption of risk. Judge Sanborn, in Finalyson vs Utica M. & M. Co., 32 U. S. App., at page 147, 14 C. C. A. 494, 67 Fed. 510, says: “It is the general *409rule that it is the duty of the master to exercise ordinary care to provide a reasonably safe place in which the servant may perform his service. Railway Co. vs Jarvi, 53 Fed. 65, 3 C. C. A. 433, 10 U. S. App. 439. But this rule cannot be justly applied to eases in which the very work the servants are employed to do consists in making a dangerous place safe, or in constantly changing the character of the place for safety as the work progresses. The duty of the master does not extend to keeping such a place safe at every moment of time as the work progresses. The servant assumes the ordinary risks and dangers of his employment that are known to him, and those that might be known to him by the exercise of ordinary care and foresight. When he engages in the work of making a place that is known to be dangerous safe, or in a work that in its progress necessarily changes the character for safety of the place in ivhich it is performed as the work progresses, the hazard of the dangerous place and the increased hazard of the place made dangeroiis by the work are the ordinary and known dangers of such a place, and by his acceptance of the employment the servant necessarily assumes them. Armour vs Hahn, 111 U. S. 313, 318, 4 Sup. Ct. 433, 28 L. Ed. 440; City of Minneapolis vs Lundin, 58 Fed. 525, 529, 7 C. C. A. 344, 19 U. S. App. 245; Railway Co. vs Jackson, 12 C. C. A. 507, 65 Fed. 48.” In Minneapolis vs Lundin, 19 U. S. App. 245, 58 Fed. 525, 7 C. C. A. 344, the same doctrine is stated; “But the duty of the master to furnish a safe place for the performance of work does not require it to keep that place safe under the constantly changing conditions which the performance of such a work as the construction of a sewer necessitates.” Bailey on Personal Injuries, vol. 2, § 3023, says; “The duty of a master to exercise ordinary care in providing his servants with a reasonably safe place to work does not require him to provide a safe place in cases where the very work upon which the servant is engaged is of a nature to make *410the place where it is done temporarily insecure; but in such ease the servant assumes the increased hazard.” In Consolidated Coal & Mining Co. vs Floyd, Adm'r (Ohio) 38 N. E. 610, 25 L. R. A. 848, the court says: “Here the place was not furnished as in any sense a permanent place of work, but was a place in which surrounding conditions were constantly changing, and, instead of being a place furnished by the master for the employes, within the spirit of the decisions referred to, was a place the furnishing and preparation of which was in itself part of the work which they were employed to perform. The distinction is shown in a number of cases, among which may be cited the Fraser vs Red River Lumber Co., 45 Minn. 235, 47 N. W. 785, McGinty vs Athol Reservoir Co., 155 Mass. 183, 29 N. E. 510, and St. Louis Consol. Coal Co. vs Scheller, 42 Ill. App. 619. See, also, Hall vs Johnson, 3 Hurl. & C. 589; Waddell vs Simoson, 112 Pa. 567, 4 Atl. 725.” The Supreme Court of Michigan, in Petaja vs Aurora Iron Mining Co., 64 N. W. 335, 32 L. R. A. 435, 58 Am. St. Rep. 505, says: “In view of the cases of Schroeder vs Flint & P. M. R. Co., 103 Mich. 213, 61 N. W. 663, 29 L. R. A. 321, 50 Am. St. Rep. 354, and Beesley vs F. W. Wheeler & Co., 103 Mich. 196, 61 N. W. 658, 27 L. R. A. 266, cited in the former opinion, there is no doubt that a master must furnish a reasonably safe place for a servant to work, if a structure is required for the carrying on of Ms business; and the briefs furnished in tMs case upon the part of the plaintiff would render us more assistance had they called our attention to cases establishing the claim that á master is obliged to make safe the place which the servant makes and occupies as a means of doing Ms work, or wMch results as an incident of the work, although it necessitates Ms presence in a place to a greater or less degree unsafe. In such cases must the master stay with or follow up the servants, to be certain that they make the place safe, so that they, or some of them, be not injured? There are many cases which *411draw the distinction pointed out.” To the same effect is Christienson vs Railway Co. (Utah) 74 Pac. 876. Labatt on Master and Servant, vol. 2, § 587, says: “Merely transitory perils, master not bound to protect the servant against. — A form of expression which is often met with in recent cases, particularly in Massachusetts, is that there can be no recovery where the danger to which the plaintiff was exposed was merely a transitory one, existing only on the single occasion when the injury was sustained, and due to no fault of plan or construction or lack of repair, and to no permanent defect or want of safety in the defendant’s works, or in the manner in which they had been ordinarily used. Or, as the rule has also been enunciated, ‘the absolute obligation of an employer to see that due care is used to provide safe appliances for his workmen is not extended to all the passing risks which arise from short-lived causes.’ ” And in section 588: “Dangers caused by the progress of the work, master not bound to protect servant, against. — One special application of the general conception underlying. the rule stated in the preceding section is that, where the work is of such character that, as it progresses, the environment of the servant must necessarily undergo frequent changes, the master is not bound to protect the servants engaged in it against the dangers resulting from those changes. The cases in which this principle is most usually applied are those involving the various kinds of construction work. It should be observed that in some cases of this class the element of a fellow servant’s negligence is not involved at all, and recovery is denied on the broad ground that there is no breach of duty on the master’s part.” Finalyson vs Utica M. & N. Co., 32 U. S. App. 143, 67 Fed. 607, 14 C. C. A. 492; Minneapolis vs Lundin, 19 U. S. App. 245, 58 Fed. 525, 7 C. C. A. 344; Bailey on Personal Injuries, vol. 2, § 3023; Consol. Coal & M. Co. vs Jno. M. Floyd, Adm’r (Ohio) 38 N. E. 610, 25 L. R. A. 848; Petaja vs Aurora Iron M. Co., 64 N. W. 335, 32 L. R. A. 439, *41258 Am. St. Rep. 505; Christienson vs Rio Grande W. Ry. (Utah) 74 Pac. 876; Labatt on Master and Servant, vol. 2, §§ 587, 588.

The law -is conclusive against the plaintiff in this case, and the court below' did what the law required in directing a verdict for defendant, and his judgment is affirmed.

Gill, C. J., and Lawrence, J., concur.